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#include <bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vii vector<pii>
#define vb vector<bool>
#define siz(x) (int)x.size()
#define pb push_back
#define nd second
#define st first
#define rep(i,a,b) for(int i=a; i<=b; i++)
using namespace std;
const int maxn = 1e6, inf = 1e9;

struct ruch{char typ; int nr; char kolor;};

int32_t main(){
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n,m;
  cin>>n>>m;
  vector<vi> obrazek(n,vi(m));
  
  vector<vi>wiersze(n,vi(26,0));
  vector<vi>kolumny(m,vi(26,0));

  vi sumawiersza(n,m);
  vi sumakolumny(m,n);

  int suma = n*m;

  rep(i,0,n-1){
    rep(j,0,m-1){
      char c;
      cin>>c;
      int akt = (int)(c-'A');
      obrazek[i][j] = akt;
      wiersze[i][akt]++;
      kolumny[j][akt]++; 
    }
  }
  vector<ruch>ans;
  while(suma>0){  
    rep(i,0,n-1){
      if(sumawiersza[i]){
        int kolor=-1;
        rep(j,0,25){
          if(kolor!= -1 && wiersze[i][j]){kolor=-5;break;}
          if(wiersze[i][j] && kolor == -1)kolor = j;
        }
        if(kolor==-5)continue;
        sumawiersza[i] = 0;
        suma-=wiersze[i][kolor];
        ans.pb({'R',i+1,(char)('A'+kolor)});
        rep(j,0,m-1){
          if(obrazek[i][j]!=-1){
            if(kolumny[j][kolor]>0)
              kolumny[j][kolor]--;
            obrazek[i][j] = -1;
            if(sumakolumny[j]>0)
              sumakolumny[j]--;
          }
        }
      }
    }
    rep(i,0,m-1){
      if(sumakolumny[i]){
        int kolor=-1;
        rep(j,0,25){
          if(kolor!= -1 && kolumny[i][j]){kolor=-5;break;}
          if(kolumny[i][j] && kolor == -1)kolor = j;
        }
        if(kolor==-5)continue;
        sumakolumny[i] = 0;
        suma-=kolumny[i][kolor];
        ans.pb({'K',i+1,(char)('A'+kolor)});
        rep(j,0,n-1){
          if(obrazek[j][i]!=-1){
            if(wiersze[j][kolor]>0)
              wiersze[j][kolor]--;
            obrazek[j][i] = -1;
            if(sumawiersza[j]>0)
              sumawiersza[j]--;
          }
        }
      }
    }
  }
  cout<<siz(ans)<<'\n';
  reverse(all(ans));
  for(auto [a,b,c] : ans){
    cout<<a<<' '<<b<<' '<<c<<'\n';
  }
}