#include<ios>
int h,w,x,y,t=2e6,a,b;char s[1020][1020];main(){scanf("%d%d",&h,&w);for(int i=0;i<h;i++){scanf("%s",s+i);for(int j=0;j<w;j++)if(s[i][j]=='R')x=i,y=j;}while(t--){if(s[a=(x+1)%h][b=(y+1)%w]=='#'){printf("%d %d",x+1,y+1);return 0;}x=a,y=b;}printf("loop");}