#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#  die.py
#  
#  Copyright 2018 Contest team 084 <cteam084@ostrava>
#  
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#  
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#  
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#  MA 02110-1301, USA.
#  
#  

kostky = [
[
":::",
":o:",
":::"
],
[
"o::",
":::",
"::o"
],
[
"o::",
":o:",
"::o"
],
[
"o:o",
":::",
"o:o"
],
[
"o:o",
":o:",
"o:o"
],
[
"o:o",
"o:o",
"o:o"
]
]


def rotace(k):
	k2 = [[],[],[]]
	
	k2[0] = k[2][0] + k[1][0] + k[0][0]
	k2[1] = k[2][1] + k[1][1] + k[0][1]
	k2[2] = k[2][2] + k[1][2] + k[0][2] 
	
	#k2[0][0] = k[2][0]
	#k2[0][1] = k[1][0]
	#k2[0][2] = k[0][0]
	
	#k2[1][0] = k[2][1]
	#k2[1][1] = k[1][1]
	#k2[1][2] = k[0][1]
	
	#k2[2][0] = k[2][2]
	#k2[2][1] = k[1][2]
	#k2[2][2] = k[0][2]
	
	return k2
	

def reader():
	try:
		while True:
			yield input()
	except EOFError:
		raise StopIteration

def tostr(v):
	t = ""
	for f in v:
		t += f
	return t

def main():
	v = list(reader())
	
	#print(rotace(kostky[5]))
	
		
	#print(tostr(v) == tostr(kostky[3]))
	
	#v = reduce(lambda x, y: x + y, v)
	#print(v)
	#print(v, kostky[4], v is kostky[4])
	
	i = 0
	
	for k in kostky:
		i += 1
		if tostr(v) == tostr(k) or tostr(v) == tostr(rotace(k)):
			print(i)
			break
		
	if i > 6:
		print("unknown")
	
	return 0

if __name__ == '__main__':
	main()