# a =int(input())
# if a == 12 or a==1 or a ==2:
# print('winter')
# elif a == 3 or a == 4 or a == 5:
# print('spring')
# elif a == 6 or a == 7 or a == 8:
# print('summer')
# else:
# print('fall')
# a = int(input())
# while a>0:
# print('*',end="")
# a = a-1
# for i in range(1,101):
# print(i, end=' ' )
# a = int(input())
# sum=0
#
# for i in range(1,a+1) :
# sum=sum+i
# print(sum)
#
# a = int(input())
# sum =0
# for i in range(1, a+1, 1):
# if i%2==0:
# sum = sum+i
# print(sum)
# a, b = input().split()
# a= int(a)
# b= int(b)
# sum = 0
#
# for i in range(a , b+1):
# if i%3==0:
# sum = sum+i
# print(sum)
# a = input()
# a = int(a)
#
# sum = 0
# for i in range(1 , a+1):
# if i % 10 ==1:
# sum = sum+1
# print(sum)
# a가 7의 배수인가요?
# a를7로 나누었을때 나누어떨어지나요?
# a를 7로 나눈 나머지가 0인가요?
# a%7 ==0
# a = input()
# a = int(a)
# for i in range(1 , a+1):
# if a % i == 0:
# print(i, end=' ')
# a = input()
# a = int(a)
#
# sum = 1
# for i in range(1 , a+1):
# sum = sum*i
# print(sum)