IUOYT%$WV^HGrfsxnbl8ifrz7hyryryryryryrN(OR76975483232uwrgh

# a,b,c = map(int,input().split())
# v = 1
# while not (v%a==0 and v%b==0 and v%c==0) :
#     v+=1
# print(v)

# import copy
#
# data = list(map(int,input().split()))
#
# a = copy.deepcopy(data)
#
# data.clear()
#
# print(a)

# for i in range(len(data)) :
#     print(data[i])

# for x in data :
#     print(x)


'''a = [1,3,4,7,4,5,1]

print(sum(a))
print(max(a))
print(min(a))
print(len(a))

a.sort()
print(a)

a.reverse()
print(a)

a.append(12)
print(a)

a.insert(2,100)
print(a)

a.pop()
print(a)

b = a.pop()
print(b)
print(a)

a.pop(3)        #3번째 데이터 삭제
print(a)

a.append(4)
a.append(4)

print(a)
print(a.count(4))

print(a.index(50))  # 50의 위치 리턴

a.remove(7)         #7값을 찾아서 삭제
a = int(input())
b = list(map(int,input().split()))
for i in range(1,24,1) :
    print(b.count(i),end=' ')'''
# a = int(input())
# b = list(map(int,input().split()))
# b.reverse()
# for i in range(0,len(b),1) :
#     print(b[i],end=' ')
# a = int(input())
# b = list(map(int,input().split()))
# print(min(b))
# a = int(input())
# for i in range(5):
#


# a = [ [0 for i in range(10)] for j in range(10) ]
# print(a)

# 가로 w, 세로 h인 이차원 배열 만들기
# a = []
# w, h = 10,10
# for i in range(h) :
#     a.append(list(map(int,input().split())))
#     # a.append([0]*w)
#
# print(a)
# a[0][0] = 10
#
# print(a)

# a = [[0 for i in range(20)] for j in range(20)]
# b = int(input())
# for i in range(b) :
#     c = list(map(int,input().split()))
#     a[c[0]][c[1]] = 1
# for i in range(1,20):
#     for j in range(1,20):
#         print(a[i][j],end='')
#         if j!=19 :
#             print(' ',end='')
#     if(i==19):
#         print('',end='')
#     else:
#         print('')
# a = []
# w,h = 20,20
# for i in range(0,19):
#     a.append(list(map(int,input().split())))
# x = int(input())
# for i in range(x):
#     c = list(map(int,input().split()))
#     for j in range(0,19):
#         if not j==c[0]-1:
#             a[j][c[1]-1] = int(not a[j][c[1]-1])
#         if not j==c[1]-1:
#             a[c[0]-1][j] = int(not a[c[0]-1][j])
# for i in range(0,19):
#     for j in range(0,19):
#         print(a[i][j],end='')
#         if j!=18:
#             print(' ',end='')
#     if i != 18:
#         print('')
# y,x = map(int,input().split())
# a = [[0 for i in range(x)] for j in range(y)]
# c = int(input())
# for i in range(c):
#     v = list(map(int,input().split()))
#     v[3] -= 1
#     v[2] -= 1
#     for j in range(v[0]):
#         if v[1]==0:
#             #if j + v[3] > x-1:
#             #    break
#             a[v[2]][j + v[3]] = 1
#         else :
#             #if j + v[2] > y-1:
#             #    break
#             a[j + v[2]][v[3]] = 1
# for i in range(y):
#     for j in range(x):
#         print(a[i][j],end = '')
#         if j != x-1:
#             print(' ',end='')
#     if i != y-1:
#         print('')
# a = []
# for i in range(10):
#     a.append(list(map(int,input().split())))
# x = 1
# y = 1
# while 1 :
#     if a[y][x]==2 :
#         a[y][x]=9
#         break
#     a[y][x] = 9
#     if a[y][x+1]!=1:
#         x += 1
#     elif a[y][x+1]==1 and a[y+1][x]!=1:
#         y+=1
#     else :
#         break
# for i in range(10):
#     for j in range(10):
#         print(a[i][j],end='')
#         if j!=9:
#             print(' ',end='')
#     if i != 9:
#         print('')

# # 이차원배열 정렬
# a = [ [1,3] , [3,2] , [2,7] ]
# a.sort(key = lambda x : -x[1])
# print(a)
#
# a = []
# 1805
# 3015
# 3019
# 3108
# a = int(input())
# b= []
# for i in range(a):
#     b.append(list(map(int,input().split())))
# b.sort(key= lambda x : x[0])
# for i in range(a):
#     print(b[i][0],b[i][1])
# a,b = map(int,input().split())
# c = []
# for i in range(a):
#     c.append(list(input().split()))
#     c[i][1] = int(c[i][1])
# c.sort(key= lambda x : -x[1])
# for i in range(b):
#     print(c[i][0])
# a = list(map(int,input('').split()))
# print(a)

# a = list(input())
# print(a)
# a = list(map(int, a))
# print(a)

# 스택 stack :  쌓는거, 나중에들어온게 먼저나가는 구조, 후입선출 -> Last In First Out -> LIFO

# st = []
#
# st.append("hello")
# st.pop()
# top -> len(st)-1

# stack의 구조 활용 문제
# 1. 3117 2016 3102 -> 스택연습
# 2. 3127 3130 -> 리얼 스택 활용
# a = []
# c = 0
# x = int(input())
# for i in range(x):
#     n = int(input())
#     if n!=0:
#         a.append(n)
#     else:
#         a.pop()
# for i in range(len(a)):
#     c += a[i]
# print(c)
# a = int(input())
# x = list(map(int,input()))
# c = []
# x.reverse()
# for i in range(len(x)):
#     c.append(x[i])
#     if (i+1)%3==0 and i!= len(x)-1:
#         c.append(',')
# c.reverse()
# for i in range(len(c)):
#     print(c[i],end='')
# a = int(input())
# sk = []
# for i in range(a):
#     x = input()
#     if x == 'top()':
#         if len(sk)==0:
#             print(-1)
#             continue
#         print(sk[len(sk)-1])
#     elif x =='pop()' and len(sk) != 0:
#         sk.pop()
#     elif x == 'size()':
#         print(len(sk))
#     elif x == 'empty()' :
#         print('true' if len(sk)==0 else 'false')
#     elif x[1] =='u' :
#         sk.append(int(x[6:-2]))
#         #print(int(x[6:-2]))
# a = list(input().split())
# jsby = [] # 정수배열 jungsubaeyeol
# def ys(x): # 연산 yeonsan
#     jsby.pop()
#     jsby.pop()
#     jsby.append(x)
#
# for i in range(len(a)):
#     if a[i]=='+':
#         x = jsby[-1] + jsby[-2]
#         ys(x)
#     elif a[i]=='-':
#         x = jsby[-2] - jsby[-1]
#         ys(x)
#     elif a[i]=='*':
#         x = jsby[-1] * jsby[-2]
#         ys(x)
#     else:
#         jsby.append(int(a[i]))
#     # print(jsby[-1])
# print(jsby[0])


# 소들의 헤어스타일 1
# import sys
# sys.setrecursionlimit(78956727)
# a = int(input())
# st = []
# count = 0
# def ax (gap):
#     global st,count
#     #print(st,count)
#     if len(st) > 0 and (st[-1] <= gap or (gap == -1 and len(st) > 1 and st[-1] < st[-2])):
#         st.pop()
#         count += len(st)
#         ax(gap)
#     return
# for i in range(a):
#     x = int(input())
#     ax(x)
#     st.append(x)
# ax(-1)
# print(count)
# a = int(input())
# st = []
# count = 0
# for i in range(a):
#     if i<a:
#         x = int(input())
#     # print(st,count)
#     if i > 0 and st[-1] <= x:
#         for j in range(len(st)):
#             if st[-1] <= x:
#                 st.pop()
#             else:
#                 break
#     if len(st) > 0 and st[-1] > x:
#         count += len(st)
#     if i<a:
#         st.append(x)
# print(count)
# a = int(input())
# st = []
# wg = 0 # w(hat i lookin)g
# x = list(map(int,input().split()))
# for i in range(a):
#     if len(st)==0:
#         st.append([x[i],i])
#         print('0',end='')
#         continue
#     # print('\n asdfasdf',st[-1][0], st[-1][1], len(st), x[i])
#     while len(st)!=0 and x[i] >= st[-1][0]:
#         st.pop()
#     #print(st)
#
#     if len(st)!=0:
#         # print('asdfasdf2',st[-1][0],st[-1][1],i,x[i])
#         print('',st[-1][1]+1,end='')
#     else:
#         print(' 0',end='')
#     st.append([x[i],i])
# a = int(input())
# b = list(map(int,input().split()))
# c = int(input())
# d = list(map(int,input().split()))
# import sys
# sys.setrecursionlimit(134589730)
# def s(sp,ep,tr):
#     c = sp+((ep-sp)//2)
#     # print('check',sp,ep,tr,c,b[c])
#     if tr==b[c]:
#         return c
#     elif c==0 or c==ep:
#         return -2
#     elif tr < b[c]:
#         return s(sp,c-1,tr)
#     elif tr > b[c]:
#         return s(c+1,ep,tr)
# for i in range(c):
#     print(int(s(0,a-1,d[i]))+1,end=' ')
# a = int(input())
# k = list(map(int,input().split()))
# t = list(map(int,input().split()))
# z = [[2,1],[2,-1],[-2,1],[-2,-1],[1,2],[-1,2],[1,-2],[-1,-2]]
# maps = [[0 for i in range(1000)] for j in range(1000)]
# x = []
# k[0]-=1
# k[1]-=1
# k.append(0)
# x.append(k)
# min = -1
#
# while 1:
#     x0 = x[0][0]
#     y0 = x[0][1]
#     c = x[0][2]
#     if maps[x0][y0]==1:
#         x.pop(0)
#         continue
#     maps[x0][y0]=1
#     print([x0,y0,c],t,min)
#     if x0+1 == t[0] and y0+1 == t[1]:
#         print(c)
#         break
#     for i in range(8):
#         x1 = x0 + z[i][0]
#         y1 = y0 + z[i][1]
#         tt = t[0]+t[1]
#         if (x1 < a and x1 >= 0) and (y1 < a and y1 >= 0):
#             if ((abs((x1+y1+2)-tt) <= min or min==-1 or min < 15)):
#                 min = abs((x1+y1+2)-tt)
#                 x.append([x1,y1,c+1])
#     x.pop(0)
# import sys
# sys.setrecursionlimit(45867345)
# n,m,k = map(int,input().split())
# maps = [[0 for i in range(m)] for j in range(n)]
# count = 0
# t = []
# def jG(pos): # jaeGuei 재귀
#     #print(pos)
#     gap = 0
#     global n,maps
#     y = pos[0]
#     x = pos[1]
#     maps[y][x]=1
#     if y + 1 < n and maps[y+1][x]==0:
#         gap += jG([y+1,x])+1
#     if y - 1 >= 0 and maps[y-1][x]==0:
#         gap += jG([y-1,x])+1
#     if x + 1 < m and maps[y][x+1]==0:
#         gap += jG([y,x+1])+1
#     if x - 1 >= 0 and maps[y][x-1]==0:
#         gap += jG([y,x-1])+1
#     return gap
#
# def jg(x0,y0,x1,y1): # JiksagakheongmandulGe 직사각형 만들기
#     global maps
#     for i in range(y0,y1):
#         for j in range(x0,x1):
#             maps[i][j]=1
# for i in range(k):
#     g,h,j,l = map(int,input().split())
#     jg(g,h,j,l)
# for i in range(n):
#     for j in range(m):
#         if maps[i][j]==0:
#             count += 1
#             t.append(jG([i,j])+1)
# print(count)
# t.sort()
# for i in range(len(t)):
#     print(t[i],end=' ')
# DfSsSsSsSsSsSs Friedractice >:3
# n,m = map(int,input().split())
# a = []
# for i in range(n):
#     a.append(list(map(int,input().split())))
# q = []
# q.append([0,0,0])
# while 1:
#     if len(q)==0:
#         print(0)
#         break
#     y = q[0][0]
#     x = q[0][1]
#     s = q[0][2]
#     #print(y,x,s)
#     if y==n-1 and x==m-1:
#         print(s+1)
#         break
#     if a[y][x] ==-1:
#         q.pop(0)
#         continue
#     gap = a[y][x]
#     a[y][x] = -1
#     #past = q[0][4]
#     if y+1 < n and abs(a[y+1][x]-gap) < 2:
#         q.append([y+1,x,s+1])
#     if y-1 >= 0 and abs(a[y-1][x]-gap) < 2:
#         q.append([y-1,x,s+1])
#     if x+1 < m and abs(a[y][x+1]-gap) < 2:
#         q.append([y,x+1,s+1])
#     if x-1 >= 0 and abs(a[y][x-1]-gap) < 2:
#         q.append([y,x-1,s+1])
#     q.pop(0)


# py
# 문법, 자료구조, + 클래스, 상속
# 라이브러리
'''
class Person :
    air = "good"        # 클래스끼리 공유하는 변수
    def __init__(self,name,age):   # 생성자 constructor
        self.name = name    # 객체당 생기는 변수
        self.age = age
    def setname(self,name):
        self.name = name
    def speak(self):
        print("안녕하세요 저는 ",self.name,"입니다")

a = Person("서현",50)
a.speak()
a.setname("현서")
a.speak()

b = Person("aa",500)
b.setname("선생님")
b.speak()
b.age = 5000
print(b.age)

print(a.air)


stus = []

stus.append(Person("현서",100))

# /$$   /$$  /$$$$$$  /$$   /$$ /$$$$$$$  /$$   /$$       /$$   /$$ /$$   /$$ /$$   /$$        /$$$$$$   /$$$$$$         /$$$$$$  /$$$$$$       /$$     /$$ /$$$$$$ 
#| $$  | $$ /$$__  $$| $$  /$$/| $$__  $$| $$  | $$      | $$$ | $$| $$  | $$| $$$ | $$       /$$__  $$ /$$__  $$       /$$__  $$|_  $$_/      |  $$   /$$//$$__  $$
#| $$  | $$| $$  \ $$| $$ /$$/ | $$  \ $$| $$  | $$      | $$$$| $$| $$  | $$| $$$$| $$      | $$  \__/| $$  \ $$      | $$  \__/  | $$         \  $$ /$$/| $$  \ $$
#| $$$$$$$$| $$$$$$$$| $$$$$/  | $$$$$$$ | $$  | $$      | $$ $$ $$| $$  | $$| $$ $$ $$      |  $$$$$$ | $$$$$$$$      | $$ /$$$$  | $$          \  $$$$/ | $$$$$$$$
#| $$__  $$| $$__  $$| $$  $$  | $$__  $$| $$  | $$      | $$  $$$$| $$  | $$| $$  $$$$       \____  $$| $$__  $$      | $$|_  $$  | $$           \  $$/  | $$__  $$
#| $$  | $$| $$  | $$| $$\  $$ | $$  \ $$| $$  | $$      | $$\  $$$| $$  | $$| $$\  $$$       /$$  \ $$| $$  | $$      | $$  \ $$  | $$            | $$   | $$  | $$
#| $$  | $$| $$  | $$| $$ \  $$| $$$$$$$/|  $$$$$$/      | $$ \  $$|  $$$$$$/| $$ \  $$      |  $$$$$$/| $$  | $$      |  $$$$$$/ /$$$$$$          | $$   | $$  | $$
#|__/  |__/|__/  |__/|__/  \__/|_______/  \______/       |__/  \__/ \______/ |__/  \__/       \______/ |__/  |__/       \______/ |______/          |__/   |__/  |__/                                                                                                                                      
2^66
학생 관리 프로그램
-> 학생 추가(있는학생은 추가못하게), 학생 삭제(없는학생 삭제불가), 학생 검색, 학생 출력
학생 필수 필드 : 나이, 이름, 학번
print('\033[95m' + '안녕' + '\033[96m' + '하세요' + '\033[0m')
''''''
hakbu = []
text = ''
print('\033[38;5;9m프\033[38;5;214m로\033[38;5;226m그\033[38;5;34m램_\033[38;5;21m__\033[38;5;57m__\033[38;5;13m___')
#print('\033[95m' + '안녕' + '\033[96m' + '하세요' + '\033[0m')
import os
class hs: # HakSangs
    def __init__(self,name,age,hb):
        self.age = age
        self.name = name
        self.hb = hb
        self.ss = 0
    def nuejalgulreatda(self):
        self.ss += 1
def c():
    os.system('cls')
class f:
    R = '\033[0m'
    Lime = '\033[38;5;10m'
    Red = '\033[38;5;9m'
print('\033[32m /$$   /$$  /$$$$$$  /$$   /$$ /$$$$$$$  /$$   /$$       /$$   /$$ /$$   /$$ /$$   /$$        /$$$$$$   /$$$$$$         /$$$$$$  /$$$$$$       /$$     /$$ /$$$$$$ \n| $$  | $$ /$$__  $$| $$  /$$/| $$__  $$| $$  | $$      | $$$ | $$| $$  | $$| $$$ | $$       /$$__  $$ /$$__  $$       /$$__  $$|_  $$_/      |  $$   /$$//$$__  $$\n| $$  | $$| $$  \ $$| $$ /$$/ | $$  \ $$| $$  | $$      | $$$$| $$| $$  | $$| $$$$| $$      | $$  \__/| $$  \ $$      | $$  \__/  | $$         \  $$ /$$/| $$  \ $$\n| $$$$$$$$| $$$$$$$$| $$$$$/  | $$$$$$$ | $$  | $$      | $$ $$ $$| $$  | $$| $$ $$ $$      |  $$$$$$ | $$$$$$$$      | $$ /$$$$  | $$          \  $$$$/ | $$$$$$$$\n| $$__  $$| $$__  $$| $$  $$  | $$__  $$| $$  | $$      | $$  $$$$| $$  | $$| $$  $$$$       \____  $$| $$__  $$      | $$|_  $$  | $$           \  $$/  | $$__  $$\n| $$  | $$| $$  | $$| $$\  $$ | $$  \ $$| $$  | $$      | $$\  $$$| $$  | $$| $$\  $$$       /$$  \ $$| $$  | $$      | $$  \ $$  | $$            | $$   | $$  | $$\n| $$  | $$| $$  | $$| $$ \  $$| $$$$$$$/|  $$$$$$/      | $$ \  $$|  $$$$$$/| $$ \  $$      |  $$$$$$/| $$  | $$      |  $$$$$$/ /$$$$$$          | $$   | $$  | $$\n|__/  |__/|__/  |__/|__/  \__/|_______/  \______/       |__/  \__/ \______/ |__/  \__/       \______/ |__/  |__/       \______/ |______/          |__/   |__/  |__/ \033[0m')
while 1:
    c()
    G = os.system('cls')#'\n' * 100
    print('\033[95m1.학생추가\n2.학생제거\n3.학생찾기\n4.전교생출력\n5.JalMotHanSaRamUanGyoMuSilLo\n6.학생정보 수정' '\033[0m')
    print('\n출력:' + text)
    text = ''
    x = list(input().split())
    if len(x)!=0 and (x[0] == 'exit' or x[0]=='비상탈출'):
        break
    if len(x)!=0 and str.isdigit(x[0]):
        x = int(x[0])
    else:
        text = '다시 입력하세요'
        continue
    if x == 1:
        c()
        print('추가하고 싶은 학생을 이름 나이 학번순으로 입력(공백 구분 필수)\n\033[38;5;9mex) 이름름님 15 12315\033[0m')
        t = list(input().split())
        if not len(t) > 2:
            text = '잘못Dam'
            continue
        itum = 0
        for i in range(len(hakbu)):
            if str.isdigit(t[2]) and hakbu[i].hb == int(t[2]):
                itum = 1
                break
        if itum==1:
            c()
            text = '학번이 중복됨'
            continue
        else:
            if len(t) > 2:
                if str.isdigit(t[1]) and str.isdigit(t[2]):
                    text = '성공적으로 학생 입력 성공'
                    hakbu.append(hs(t[0],int(t[1]),int(t[2])))
                else:
                    text = '잘못됌'
            else:
                text = '잘못된 형식'
    elif x==2:
        if len(hakbu)==0:
            text = '전교생이 한명도 없습니다.'
            continue
        c()
        print(f.Red+'삭제'+f.R+'하고 싶은 학생의 학번')
        t = input()
        if str.isdigit(t):
            t = int(t)
        else:
            text = 'DaSSiHae'
            continue
        for i in range(len(hakbu)):
            if hakbu[i].hb == int(t):
                s = hakbu[i]
                c()
                print(f.Red+'삭제된'+f.R+' 학생: [이름:%s, 나이:%d, 학번:%d]'%(s.name,s.age,s.hb))
                print(f.Lime+'돼ㅣ돌리시겠습니까? '+f.Lime+'Y'+f.R+'/'+f.Red+'N'+f.R)
                DaeDap = input()
                if DaeDap=='Y' or DaeDap =='y':
                    text = f.Lime+'복구됨.'
                else:
                    hakbu.pop(i)
                    text = 'return to first menwu'
                break
            elif i==len(hakbu)-1:
                text = f.Red+'없는'+ f.R + ' 학생입니다.'
    elif x==3:
        if len(hakbu)==0:
            text = '와!, \033[38;5;14m 공기\033[0m를 찾았다!.'
            continue
        c()
        print('이름이나 학번 입력')
        x1 = input()
        c1 = 0
        c()
        for i in range(len(hakbu)):
            s = hakbu[i]
            if str.isdigit(x1):
                if s.hb == int(x1):
                    text += '\033[38;5;14m' + '%s의 정보 : [나이:%d, 학번:%d, 선도간 횟수:%d]\n'%(s.name,s.age,int(x1),s.ss)+ f.R
                    c1=1
            elif s.name == x1:
                text += f.Lime+ '%s의 정보 : [나이:%d, 학번:%d, 선도간 횟수:%d]\n'%(x1,s.age,s.hb,s.ss) + f.R
                c1=1
        if c1==0:
            text = '그 학생이나 학생들은 존재하지 않는다.'
    elif x==4:
        if len(hakbu)==0:
            text = '! no student in school'
            continue
        c()
        text += '찾은 정보\n'
        for i in range(len(hakbu)):
            s = hakbu[i]
            text += '\033[96m[ 이름:%s, 나이:%d, 학번:%d, 선도 간 횟수:%d ]\033[0m\n'%(s.name,s.age,s.hb,s.ss)
    elif x==5:
        if len(hakbu)==0:
            text = "학교 폐업하셨나요"
            continue
        c()
        print(f.Red+'잘못한 사람의 학번 입력.'+f.R)
        t = input()
        if str.isdigit(t):
            t = int(t)
        silhang = 0
        for i in range(len(hakbu)):
            s = hakbu[i]
            if s.hb == t:
                silhang = 1
                s.nuejalgulreatda()
                text ='%s의 현재까지'%s.name+f.Red+ ' 선도간 총 누적 횟수'+f.R+':%d\n'%s.ss
        if not silhang:
            text = '그런 사람 저희 학교에 없읍니다'
    elif x==6:
        if len(hakbu)==0:
            text = '전교생이 다 파업함?'
            continue
        c()
        print('수정할 사람의 학번 입력')
        t = input()
        if str.isdigit(t):
            t = int(t)
        else:
            text = '잘못된 입력'
            continue
        c1 = 0
        i=0
        while i<len(hakbu):
            s = hakbu[i]
            if s.hb == t:
                c1 = 1
                c()
                print('수정 하고 싶은거.\n1.나이,2.이름,3 학번')
                z = input()
                if str.isdigit(z):
                    z = int(z)
                else:
                    text = '다시입력.'
                    continue
                while 1:
                    c()
                    if z==1:
                        print('수정된 나이를 입력해 주세\n\n현재 나이:%d\n'%s.age)
                        z1 = input()
                        if str.isdigit(z1):
                            z1 = int(z1)
                        else:
                            continue
                        s.age = z1
                        text = '나이 변경됨'
                        text += '\n현재 학생의 정보: [이름:%s, 나이:%d, 학번:%d]' % (s.name, s.age, s.hb)
                    elif z==2:
                        print('수정된 이름를 입력해 주ㅓ요\n\n현재 이름:%s\n'%s.name)
                        z1 = input()
                        s.name = z1
                        text = '이름 변경됨'
                        text += '\n현재 학생의 정보: [이름:%s, 나이:%d, 학번:%d]' % (s.name, s.age, s.hb)
                    elif z==3:
                        print('수정된 학번를 입력해 주ㅅ\n\n현재 학번:%d\n'%s.hb)
                        z1 = input()
                        if str.isdigit(z1):
                            z1 = int(z1)
                        else:
                            continue
                        s.hb = z1
                        text ='학번 변경됨'
                        text += '\n수정된 학생의 정보: [이름:%s, 나이:%d, 학번:%d]' % (s.name, s.age, s.hb)
                    else:
                        text = '잘못 입력 하셨음으로 처음으로 돌아갑니다.'
                    break
            i += 1
            if i > len(hakbu):
                break
        if c1==0:
            text = '학번 다시 입력'
        else:
            break
    else:
        text = '...'
print('왜끔?')
'''
import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton
from PyQt5.QtCore import QCoreApplication
class App(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()
    def initUI(self):
        b = QPushButton('%s' % self.size(), self)
        b.resize(b.sizeHint())
        b.clicked.connect(QCoreApplication.instance().quit)
        self.setWindowTitle('App은Application')
        self.move(300,300)
        self.setGeometry(500,500,500,400)
        self.show()
        b.move(self.size().width() // 2 - b.size().width()//2, self.size().height() // 2 - b.size().height()//2)
if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())