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#include <bits/stdc++.h>

using namespace std;

#define JOIN_(X, Y) X##Y
#define JOIN(X, Y) JOIN_(X, Y)
#define TMP JOIN(tmp, __LINE__)
#define PB push_back
#define SZ(x) int((x).size())
#define REP(i, n) for (int i = 0, TMP = (n); i < TMP; ++i)
#define FOR(i, a, b) for (int i = (a), TMP = (b); i <= TMP; ++i)
#define FORD(i, a, b) for (int i = (a), TMP = (b); i >= TMP; --i)

#ifdef DEBUG
#define DEB(x) (cerr << x)
#else
#define DEB(x)
#endif

typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pii;

const int INF = 1e9 + 9;

struct Result {
    char dim;
    int number;
    char color;
};

void inline one() {
    int rows, cols;
    cin >> rows >> cols;
    vector<unordered_map<char, int>> rows_cnt(rows), cols_cnt(cols);
    vector<string> t;
    REP(i, rows) {
        string s;
        cin >> s;
        t.emplace_back(s);
        REP(j, cols) {
            int c = s[j];
            ++rows_cnt[i][c];
            ++cols_cnt[j][c];
        }
    }
    // DEB("rows_cnt:\n");
    // REP(i, rows) {
    //     DEB("i = " << i << ":\n");
    //     for (const auto &[k, v] : rows_cnt[i]) {
    //         DEB(" (" << k << "," << v << ")");
    //     }
    //     DEB("\n");
    // }
    // DEB("cols_cnt:\n");
    // REP(i, cols) {
    //     DEB("i = " << i << ":\n");
    //     for (const auto &[k, v] : cols_cnt[i]) {
    //         DEB(" (" << k << "," << v << ")");
    //     }
    //     DEB("\n");
    // }
    vector<Result> results;
    for (;;) {
        DEB("ITERATION\n");
        bool any = false;
        REP(row, rows) {
            // DEB("row = " << row << ": cnt=" << SZ(rows_cnt[row]) << "\n");
            // for (const auto &[k, v] : rows_cnt[row]) {
            //     DEB(" (" << k << "," << v << ")");
            // }
            // DEB("\n");
            if (SZ(rows_cnt[row]) == 1) {
                any = true;
                const auto &it = rows_cnt[row].begin();
                char color = it->first;
                results.emplace_back('R', row, color);
                rows_cnt[row].erase(it);
                REP(col, cols) {
                    const auto &cnt = cols_cnt[col].find(color);
                    if (cnt != cols_cnt[col].end()) {
                        if (--cols_cnt[col][color] == 0) {
                            cols_cnt[col].erase(color);
                        }
                    }
                }
            }
        }
        REP(col, cols) {
            // DEB("col = " << col << ": cnt=" << SZ(cols_cnt[col]) << "\n");
            // for (const auto &[k, v] : cols_cnt[col]) {
            //     DEB(" (" << k << "," << v << ")");
            // }
            // DEB("\n");
            if (SZ(cols_cnt[col]) == 1) {
                any = true;
                const auto &it = cols_cnt[col].begin();
                char color = it->first;
                results.emplace_back('K', col, color);
                cols_cnt[col].erase(it);
                REP(row, rows) {
                    const auto &cnt = rows_cnt[row].find(color);
                    if (cnt != rows_cnt[row].end()) {
                        if (--rows_cnt[row][color] == 0) {
                            rows_cnt[row].erase(color);
                        }
                    }
                }
            }
        }
        if (not any) {
            break;
        }
    }
    cout << SZ(results) << "\n";
    reverse(results.begin(), results.end());
    for (const auto &result : results) {
        cout << result.dim << " " << (result.number + 1) << " " << result.color << "\n";
    }
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    // int z; cin >> z; while(z--)
    one();
}