#import<ios>
int h,w,i,j,k;char s[1<<20];main(){for(scanf("%d%d %[^a]",&h,&w,s);s[k]^82;k++);for(;s[k=(i=k/++w+1)%h*w+(j=k%w+1)%--w]&4?:!printf(s[k]%2?"%d %d":"loop",i,j););}