# https://school.programmers.co.kr/learn/courses/30/lessons/120814
# programmers, level0: 피자 나눠 먹기 (1), python
from math import ceil
def solution(n: int) -> int:
return ceil(n / 7)
if __name__ == '__main__':
print(solution(7)) # 1
print(solution(1)) # 1
print(solution(15)) # 3