R=range
H,W=map(int,input().split())
S=[input()for i in R(H)]
print(*([([H,s][s>0],[W,t][t>0])for i in R(H)for j in R(W)if'.'<S[i][j]for s,t in[((i+L)%H,(j+L)%W)for L in R(H*W)]if'.'>S[s][t]]+[("loop",)])[0])