mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    N = int(input())

    if N == 1 or N == 4:
        print(-1)
        exit()

    if N%4 == 2:
        print(-1)
    else:
        print(1)


if __name__ == '__main__':
    main()