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#include <iostream>
#include <vector>
#include <set>

using namespace std;
char T[2000][2000];
vector<string> kolejnosc;
bool tenSamKolorRow(int row,const set<int>& coll){
    char color = T[row][*coll.begin()];
    for(auto num : coll)
        if(T[row][num]!=color)
            return false;
    return true;
}
bool tenSamKolorCol(int col, const set<int>&row){
    char color = T[*row.begin()][col];
    for(auto num : row)
        if(T[num][col]!=color)
            return false;
    return true;
}

set<int> rows,colls;
int main() {
    cin.tie(0);
    ios::sync_with_stdio(0);

    int n, m;
    cin >> n >> m;


    for (int i = 0; i < n; i++){
        rows.insert(i);
        for (int j = 0; j < m; j++)
            cin >> T[i][j];
    }
    for (int j = 0; j < m; j++)
        colls.insert(j);

    int l = 0;
    vector<int> trash;
    bool zmiana = true;
    while(zmiana && colls.size() != 0){
        zmiana = false;
        for(auto row : rows){
            if(tenSamKolorRow(row,colls)) {
                kolejnosc.push_back("R "+to_string(row+1)+" "+ (T[row][*colls.begin()]));
                trash.push_back(row);
                zmiana = true;
            }
        }
        for(int row : trash){
            rows.erase(row);
        }
        trash.clear();
        if(rows.size() == 0)
            break;

        for(auto col : colls){
            if(tenSamKolorCol(col,rows)){
                kolejnosc.push_back("K "+to_string(col+1)+" "+ (T[*rows.begin()][col]));
                trash.push_back(col);
                zmiana = true;
            }
        }
        for(int col : trash)
            colls.erase(col);
        trash.clear();
    }

    cout<<kolejnosc.size()<<"\n";
    for (auto it = kolejnosc.rbegin(); it != kolejnosc.rend(); ++it) {
    cout << *it << "\n";
}

    return 0;
}