a,*s=open(0)
w=len(s[0])
s="".join(s)
I=s.find('R')
while 1:s[N:=(I-~(I%w>w-3or w))%len(s)]!='.'>exit(print([f"{I//w+1} {I%w+1}","loop"][a<s[N]]));I=N