untitled

#include <stdio.h>
#define rep(i,r,l) for(int i =(r); (int) l < i;i++)
int  main(void){
  int h,w;
  scanf("%d %d", &h, &w);
  char mi[h+1][w+1], mo[h+1][h+1];
  char t;
  int rc[h], bc[h], wc[h];
  rep(i,0,h){
    rep(j,0,w){
      if((t= mi[i][j] = mo[i][j] =getchar()) != 'R'){
        rc[i] ++;
      }
      if((t) != 'B'){
        bc[i]++;
      }
      if((t) != 'W'){
        wc[i]++;
      }
    }
  }
  int we = 0, re = 0;
  int cmin = 1e9+7;
  int buf_cmin = 0
  rep(i,1,h-2){
    rep(j,2+i,h-1){
      buf_cmin =0;
      rep(k,0,i-1){
        buf_cmin += wc[k];
      }
      rep(k,i,j-1){
        buf_cmin += bc[k];
      }
      rep(k,j,h){
        buf_cmin += rc[k];
      }
      if(buf_cmin < cmin){
        cmin = buf_cmin;
        we = (we >= i ? i:we);
        re = (we >= j ? j:re);
      }
    }
  }
  printf("%d %d",we,re );
  return 0;
}