#import<bits/stdc++.h>
using namespace std;string b[1234];int X,Y,i,x,y;main(){cin>>Y>>X;for(;i<Y;i++)cin>>b[i];for(i=0;i<X*Y;i++)if(b[i/X][i%X]==82){x=i%X;y=i/X;}for(;i>=0;i--){y=(y+1)%Y;x=(x+1)%X;if(b[y][x]==35)break;}if(b[y][x]==35)printf("%d %d\n",(y+Y-1)%Y+1,(x+X-1)%X+1);else puts("loop");}