import sys

d = {
    1: '111101111',
    2: '110111011',
    3: '110101011',
    4: '010111010',
    5: '010101010',
    6: '010010010'
}

def _round(s):
    return [
        s[6] + s[3] + s[0] + s[7] + s[4] + s[1] + s[8] + s[5] + s[2],
        s[8:5:-1] + s[5:2:-1] + s[2::-1],
        s[2:9:3] + s[1:8:3] + s[0:7:3],
        s
    ]

if __name__ == "__main__":
    lines = sys.stdin.readlines()
    s = "".join([l[:-1] for l in lines])
    s = s.replace(":", "1")
    s = s.replace("o", "0")
    for k, v in d.items():
        if s in _round(v):
            print(k)
            exit(0)
    print('unknown')
    exit(0)