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#include <bits/stdc++.h>
using namespace std;

const int N = 2000;
const int A = 26;

int rzad[N][A];
int kolumna[N][A];

string znak[N];

struct ruch {
    char kol_wiersz, kolor;
    int nr;
    ruch(char wiersz, char kol, int idx) {
        kol_wiersz = wiersz;
        kolor = kol;
        nr = idx;
    }
};

void check(int ile[N][A], int drugi[N][A], char typ, vector <ruch> &ruchy, int idx, int n) {
    //cout << typ << "\n";
    char x = '1';
    for(int i = 0; i < A; i++) {
        if(ile[idx][i] > 0) {
            if(x != '1')
                return;
            x = char(i + 'A');
        }
    }

    if(x == '1')
        return;
    //cout << x << " " << idx << " " << typ << "\n";

    ruchy.push_back(ruch(typ, x, idx));
    ile[idx][x - 'A'] = 0;
    for(int i = 0; i < n; i++) {
        int idx1 = typ == 'K' ? i : idx;
        int idx2 = typ == 'K' ? idx : i;
        if(znak[idx1][idx2] == x) {
            znak[idx1][idx2] = ' ';
            drugi[i][x - 'A']--;
        }
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

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

    for(int i = 0; i < n; i++) {
        cin >> znak[i];
        for(int j = 0; j < m; j++) {
            int z = znak[i][j] - 'A';
            rzad[i][z]++;
            kolumna[j][z]++;
        }
    }

    vector <ruch> ruchy;

    for(int X = 1; X <= n + m; X++) {
        for(int i = 0; i < n; i++) 
            check(rzad, kolumna, 'R', ruchy, i, m);
        for(int i = 0; i < m; i++)
            check(kolumna, rzad, 'K', ruchy, i, n);
    }

    cout << ruchy.size() << "\n";

    for(int i = ruchy.size() - 1; i >= 0; i--)
        cout << ruchy[i].kol_wiersz << " " << ruchy[i].nr + 1 << " " << ruchy[i].kolor << "\n";
}