import sys

input = sys.stdin.readline


def main():
    x = int(input())
    if 3 <= x <= 5:
        print("spring")
    elif 6 <= x <= 8:
        print("summer")
    elif 9 <= x <= 11:
        print("fall")
    else:
        print("winter")


if __name__ == "__main__":
    main()