939 B | 939 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from decimal import Decimal
BLANK = " "
# inp = input
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
l = [input() for _ in range(3)]
if l[0] == l[2] == ":::" and l[1] == ":o:":
return 1
if l[0] == l[2] == "o:o":
if l[1] == ":::":
return 4
if l[1] == ":o:":
return 5
if l[0] == l[2] == "ooo" and l[1] == ":::":
return 6
if l[0] == l[1] == l[2] == "o:o":
return 6
if ((l[0] == "o::" and l[2] =="::o") or (l[0] == "::o" and l[2] =="o::")):
if l[1] == ":::":
return 2
if l[1] == ":o:":
return 3
return "unknown"
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()
p(ret)