# a,b = input().split()
# c = float(a)**float(b)
# print(c)
# a,b = input().split()
# a = int(a)
# b = int(b)
# print(a//b)
# a,b = input().split()
# a = int(a)
# b = int(b)
# print(a%b)
# a = input()
# a = float(a)
# print(format(a,".2f"))
# a,b = input().split()
# a = float(a)
# b = float(b)
# c = a/b
# print('%.3f'%c)
# a,b = input().split()
# a = int(a)
# b = int(b)
# c = a/b
# print(a+b)
# print(a-b)
# print(a*b)
# print(a//b)
# print(a%b)
# print('%.2f'%(c))
# a, b, c = input().split()
# # a, b, c, type is stirng
# a = int(a)
# b = int(b)
# c = int(c)
#
# print(a+b+c, '%.2f' %((a+b+c)/3))
# a = int(input())
# b = int(input())
# a = map(int,)
# a, b, c = map(int, input().split())
# data = list(map(int, input().split()))
# list type: [1, 2, 3] # like array
# data = list(map(int, input().split()))
# print(data)
# data = 'hello'
# print(data, type(data))
#
# data = list(data)
# print(data, type(data))
# a, b, c = input().split()
# a = int(a)
# b = int(b)
# c = int(c)
# print(a+b+c, '%.2f'%((a+b+c)/3))
# a,b = input().split()
# a = int(a)
# b = int(b)
# print(a < b)
# a,b = input().split()
# a = int(a)
# b = int(b)
# print(a==b)
# a,b = input().split()
# a = int(a)
# b = int(b)
# print(a<=b)
# a,b = input().split()
# a = int(a)
# b = int(b)
# print(a!=b)
# a = int(input())
# print(bool(a))
# a = bool(int(input()))
# print(not a)