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#include <bits/stdc++.h>

using namespace std;
#define ll long long
#define maxn 2010
#define maxa 30
#define result_t pair<bool, pair<int,char>>

char board[maxn][maxn];
bool removed[maxn][maxn];
queue<result_t> next_to_do;
vector<result_t> output;
int count_column[maxn][maxa], count_row[maxn][maxa], different_column[maxn], different_row[maxn];


void add_pixel(int row, int column, char c) {
    count_column[column][c-'A']++;
    count_row[row][c-'A']++;
    if (count_column[column][c-'A'] == 1) {
        different_column[column]++;
    }
    if (count_row[row][c-'A'] == 1) {
        different_row[row]++;
    }
}

char find_color(bool row, int idx) {
    for(int i = 0;; ++i) {
        if (row && count_row[idx][i] != 0) {
            return 'A' + i;
        }
        else if (!row && count_column[idx][i] != 0) {
            return 'A' + i;
        }
    }
}

void conditional_push(int val, bool row, int idx) {
    if (val == 1) {
        next_to_do.push({row, {idx, find_color(row, idx)}});
    }
}

void remove_pixel(int row, int column) {
    if (removed[row][column]) {
        return;
    }
    else {
        removed[row][column] = true;
    }
    int c = board[row][column] - 'A';
    count_column[column][c]--;
    count_row[row][c]--;
    if (count_column[column][c] == 0) {
        different_column[column]--;
        conditional_push(different_column[column], false, column);
    }
    if (count_row[row][c] == 0) {
        different_row[row]--;
        conditional_push(different_row[row], true, row);
    }
}

void initialize(int n, int m) {
    for (int i = 0; i < n; ++i) {
        conditional_push(different_row[i], true, i);
    }
    for (int i = 0; i < m; ++i) {
        conditional_push(different_column[i], false, i);
    }
}

void output_print() {
    cout << (int)output.size() << endl;
    for (int i = (int)output.size() - 1; i >= 0; --i) {
        auto el = output[i];
        char op_type = el.first ? 'R' : 'K';
        cout << op_type << " " << el.second.first + 1 << " " << el.second.second << endl; 
    }
}


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n,m;
    cin >> n >> m;
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            cin >> board[i][j];
            add_pixel(i, j, board[i][j]);
        }
    }
    initialize(n, m);
    while(!next_to_do.empty()) {
        auto el = next_to_do.front();
        next_to_do.pop();
        output.push_back(el);
        if (el.first) { //is row
            for (int j = 0; j < m; ++j) {
                remove_pixel(el.second.first, j);
            }
        }
        else {
            for (int j = 0; j < n; ++j) {
                remove_pixel(j, el.second.first);
            }
        }
    }
    output_print();
}