#import<ios>
int h,w,i,j,k,l;char s[1001][1000];main(){for(scanf("%d%d",&h,&w);~scanf("%s",s[k]);k++)for(l=0;l<w;l++)s[k][l]-82?0:(i=k,j=l);for(;k=i<h-1?i+1:0,l=j<w-1?j+1:0,s[k][l]&4;i=k)j=l;s[k][l]&1?printf("%d %d",i+1,j+1):puts("loop");}