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#include <iostream>
#include <vector>
#include <map>
#include <algorithm>
#include <queue>
int paints[4007][30];
using namespace std;
int n, m;
const int letters = 26;
vector<pair<int, int> >V2;
void paint(int a, int b){
    V2.push_back({a, b});
    paints[a][letters]=0;
    if(a>=n){
        for(int i=n;i<n+n;i++){
            if(paints[i-n][letters] == 0){
                continue;
            }
            paints[i-n][b]--;
            paints[i-n][letters]--;
        }
    }
    else{
        for(int i=0;i<m;i++){
            if(paints[i+n][letters] == 0){
                continue;
            }
            paints[i+n][b]--;
            paints[i+n][letters]--;
        }
    }

    for(int i=0;i<m;i++){
        for(int j=0;j<letters;j++){
            if(paints[i+n][j] == paints[i+n][letters]&&paints[i+n][letters]!=0){
                paint(i+n, j);
            }
        }
    }
    for(int i=n;i<n+n;i++){
        for(int j=0;j<letters;j++){
            if(paints[i-n][j] == paints[i-n][letters]&&paints[i-n][letters]!=0){
                paint(i-n, j);
            }
        }
    }
}

int main() {
    cin >> n >> m;
    char c;
    pair<int, int> P;
    bool flag = 1;
    for (int i = 0; i < n; ++i) {
        for(int j=0;j<m;j++){
            cin>>c;
            c = (int)c - (int)'A';
            paints[i][c]++;
            paints[j+n][c]++;
            if(paints[i][c] == m && flag){
                P = {i, c};
            }
            if(paints[j+n][c] == n && flag){
                P = {j+n, c};
                flag = false;
            }
            paints[i][letters] = m;
            paints[j+n][letters]= n;
        }
    }
    paint(P.first, P.second);
    cout<<V2.size()<<endl;
    for(int i=V2.size()-1;i>=0;i--){
        if(V2[i].first<n){
            cout<< "R "<< V2[i].first + 1 <<" "<<char('A'+V2[i].second)<<endl;
        }
        else{
            cout<< "K "<< V2[i].first + 1 - n <<" "<<char('A'+V2[i].second)<<endl;
        }
    }
    return 0;
}