#!/usr/bin/python3

# Author: Georg Seegerer <7rk (at) gmx (point) de>
# Copyright: public domain
# date: 16 mai 2021
# version 1.1

# usage: cat example_cube.cub | python3 cub_2_rubik_pattern.py | rubiks_dikcube -p

# take a saved cube (*.cub) from cube.exe and put it into the solver "rubiks_dikcube"
# In MINT Linux 20.1 this file is part of the package "Rubiks", see
# http://manpages.ubuntu.com/manpages/xenial/man1/rubiks_dikcube.1.html

# Output examples:
# F1: turn front side CW (as seen from top of this side)
# F2: turn front side 180°
# F3: turn front side CCW
# B1: turn back  side CW (as seen from top of the back side)

# CW:  clock wise
# CCW: counter clock wise

#################

# version history
#
# v1.1 (16 mai 2021)
# description of the rubiks_dikcube output format corrected (twists were mirrored)
# color number of Cube.exe to letter of rubiks_dikcube mapping: now works for non-default color definition in Cube.ini

# v1.0 (9 mai 2021)
# initial release

#################

# cube.exe: https://www.heise.de/download/product/cube-50629
#  
# file format of saved *.cub File of cube.exe:

# line      face in cube.exe    face name 
#           with F7-default     as used in
#           orientation         rubiks_dikcube
# 1-9       up                  U
# 10-18     down                D           (this face is named "down" on purpose)
# 19-27	    left                L
# 28-36	    front               F
# 37-45	    right               R
# 46-54	    back                B           (attention: B is "backside" not "bottom"!)



import sys


num_elements=54                          # there are 6 faces with 9 elements each
cub_num_list=[-1] * (num_elements+1)     # Init List
rub=          [0] * (num_elements+1)

linecnt=1                         # Element with index zero is unused on purpose
for line in sys.stdin:
    #print(line)
    if line[0].isnumeric():         # first character of the line is a number?
        cub_num_list[linecnt]=int(line[0])   # put first char of the line into the list + convert to integer
        linecnt=linecnt+1
    else:
        continue        # with this, being robust against empty lines, headlines, lines with comments, etc.

    if linecnt > num_elements:   # read max 54 lines, even if there are more
        break


if linecnt!=(num_elements+1):
    sys.stderr.write("****** too less lines in the input:")
    sys.stderr.write(str(linecnt))
    sys.stderr.write(" ******")
    exit


# mapping: color to face 
cub2char_list = ["-","-","-","-","-","-"]    # now: this are only dummy values

# index number of the center piece of each face: 5 = offset of center piece of that face / [0..5]*9 = all 6 faces
cub2char_list[cub_num_list[5+0*9]]="U"   # this is the color number for UP
cub2char_list[cub_num_list[5+1*9]]="D"   # this is the color number for DOWN
cub2char_list[cub_num_list[5+2*9]]="L"   # this is the color number for LEFT
cub2char_list[cub_num_list[5+3*9]]="F"   # this is the color number for FRONT
cub2char_list[cub_num_list[5+4*9]]="R"   # this is the color number for RIGHT
cub2char_list[cub_num_list[5+5*9]]="B"   # this is the color number for BACK
# print (cub2char_list) # debugging
# ToDo: sanity check: all 6 elements of cub2char_list got a letter 



# replace the numbers of the *.cub file with the letters for the faces
for index in range(len(cub_num_list)):
    rub[index]=cub2char_list[cub_num_list[index]]


# generate the output: pattern for rubiks_dikcube needs to look like this:

#           BBB
#           BBB
#           BBB
#        LLLUUURRRDDD
#        LLLUUURRRDDD
#        LLLUUURRRDDD
#           FFF
#           FFF
#           FFF

print("   ",                    rub[54],rub[53],rub[52],                                                     sep='')
print("   ",                    rub[51],rub[50],rub[49],                                                     sep='')
print("   ",                    rub[48],rub[47],rub[46],                                                     sep='')
print(rub[25],rub[22],rub[19],  rub[ 1],rub[ 2],rub[ 3],  rub[39],rub[42],rub[45],  rub[18],rub[17],rub[16], sep='')
print(rub[26],rub[23],rub[20],  rub[ 4],rub[ 5],rub[ 6],  rub[38],rub[41],rub[44],  rub[15],rub[14],rub[13], sep='')
print(rub[27],rub[24],rub[21],  rub[ 7],rub[ 8],rub[ 9],  rub[37],rub[40],rub[43],  rub[12],rub[11],rub[10], sep='')
print("   ",                    rub[28],rub[29],rub[30],                                                     sep='')
print("   ",                    rub[31],rub[32],rub[33],                                                     sep='')
print("   ",                    rub[34],rub[35],rub[36],                                                     sep='')



#print (linecnt)
#print(cub_num_list)
#print(rub)