260113
# a, b, c = map(int, input().split())
# if b <= c < a or c <= b < a:
# print(b if b > c else c)
# elif a <= c < b or c <= a < b:
# print(a if a > c else c)
# elif a <= b < c or b <= a < c:
4회 조회


//#include<stdio.h>
//int q[3333333][3]={}, top=-1, w=-1, arr[1010][1010]={}, memo[1010][1010]={};
//void push(int a, int b, int c)
//{
// top++;
// q[top][0]=a;
# data=[]
# n=int(input())
# for i in range(n):
# x=[0]*n
# data.append(x)
#