# 20 21 22 23 24
# 15 16 17 18 19
# 10 11 12 13 14
# 05 06 07 08 09
# 00 01 02 03 04
 
#   0
# 3   1
#   2
 
def read_field():
    return sum([int(input().strip()[::-1].replace('R','1').replace('W','0'),2)<<(i*5)for i in range(4,-1,-1)])
def print_field(field):
    print(hex(field))
    for i in range(4,-1,-1):
        print(*['WR'[field>>i*5+j&1]for j in range(5)])
 
def new_state(pos,went,field):
    return pos<<27|went<<25|field
def get_pos(state):
    return state>>27
def get_went(state):
    return state>>25&3
def get_field(state):
    return state&(1<<25)-1
def go_left(state):
    pos=get_pos(state)
    return new_state(pos-1,3,1<<pos-1^get_field(state)) if get_went(state)!=1 and pos%5>0 else -1
def go_right(state):
    pos=get_pos(state)
    return new_state(pos+1,1,1<<pos+1^get_field(state)) if get_went(state)!=3 and pos%5<4 else -1
def go_up(state):
    pos=get_pos(state)
    return new_state(pos+5,0,1<<pos+5^get_field(state)) if get_went(state)!=2 and pos//5<4 else -1
def go_down(state):
    pos=get_pos(state)
    return new_state(pos-5,2,1<<pos-5^get_field(state)) if get_went(state)!=0 and pos//5>0 else -1
 
 
field=read_field()
print_field(field)
 
first=new_state(0,0,field^1)
stateset=set()
stateset.add(first)
 
steps=[first]
 
for i in range(17):
    print('step',i+1,':',len(steps))
    temp=[]
    for current in steps:
        for func in [go_left,go_right,go_up,go_down]:
            step=func(current)
            if step!=-1 and not step in stateset:
                stateset.add(step)
                temp.append(step)
    steps=temp
 
print('step',18,':',len(steps))

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UldXV1IKV1JXV1cKUldSV1cKUldXUlcKV1JSV1IK

RWWWR
WRWWW
RWRWW
RWWRW
WRRWR