mod = 1000000007
eps = 10**-9


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

    N = input().rstrip('\n')
    NN = 0
    beki16 = 1
    for i in range(len(N)):
        NN += (ord(N[-i-1]) - 55) * beki16
        beki16 *= 16
    cnt = [0] * 8
    while NN:
        cnt[NN % 8] += 1
        NN //= 8
    ma = -1
    I = []
    for x in range(8):
        if cnt[x] > ma:
            I = [x]
            ma = cnt[x]
        elif cnt[x] == ma:
            I.append(x)
    print(*I)


if __name__ == '__main__':
    main()