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#include <iostream>
#include <vector>
#include <sstream>
#include <string>

using namespace std;

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n, m;
	cin >> n >> m;

	vector<vector<int>> board;
	vector<vector<int>> count_row;
	vector<vector<int>> count_col;

	board.resize(n, vector<int>(m));
	count_row.resize(n, vector<int>(28));
	count_col.resize(m, vector<int>(28));

	string line;

	vector<string> operations;
	stringstream output;

	for (int i = 0; i < n; i++) {
		cin >> line;
		for (int j = 0; j < line.size(); j++) {
			board[i][j] = (int)line[j] - 64;
		}
	}

	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			count_row[i][board[i][j]]++;
			count_col[j][board[i][j]]++;
		}
	}

	for (int i = 0; i < n; i++) {
		int nonzero = 0;
		for (int l = 0; l < 27; l++) {
			if (count_row[i][l] > 0) {
				nonzero++;
			}
		}
		count_row[i][27] = nonzero;
	}

	for (int j = 0; j < m; j++) {
		int nonzero = 0;
		for (int l = 0; l < 27; l++) {
			if (count_col[j][l] > 0) {
				nonzero++;
			}
		}
		count_col[j][27] = nonzero;
	}

	//for (int i = 0; i < n; i++) {
	//	for (int l = 0; l < 28; l++) {
	//		cout << count_row[i][l] << " ";
	//	}
	//	cout << endl;
	//}

	//cout << endl;

	//for (int j = 0; j < m; j++) {
	//	for (int l = 0; l < 28; l++) {
	//		cout << count_col[j][l] << " ";
	//	}
	//	cout << endl;
	//}
	
	int s = n + m;

	while (--s >= 0) {
		int candidate = -1;
		char candidate_type = 'N';
		int letter = -1;

		for (int i = 0; i < n; i++) {
			if (count_row[i][27] == 1) {
				candidate = i;
				candidate_type = 'R';
				for (int l = 0; l < 27; l++) {
					if (count_row[i][l] > 0) {
						letter = l;
						break;
					}
				}
				break;
			}
		}

		if (candidate_type == 'N') {
			for (int i = 0; i < m; i++) {
				if (count_col[i][27] == 1) {
					candidate = i;
					candidate_type = 'C';
					for (int l = 0; l < 27; l++) {
						if (count_col[i][l] > 0) {
							letter = l;
							break;
						}
					}
					break;
				}
			}
		}

		if (candidate_type == 'R') {
			// remove row
			count_row[candidate][27] = 0;
			// update letter count in every column
			for (int j = 0; j < m; j++) {
				count_col[j][letter]--;
				// update non zero count if letter count drops to 0
				if (count_col[j][letter] == 0) {
					count_col[j][27]--;
				}
			}

			operations.push_back("R " + to_string(candidate + 1) + " " + static_cast<char>(letter + 64));
		}
		else if (candidate_type == 'C') {
			// remove col
			count_col[candidate][27] = 0;
			// update letter count in every column
			for (int j = 0; j < n; j++) {
				count_row[j][letter]--;
				// update non zero count if letter count drops to 0
				if (count_row[j][letter] == 0) {
					count_row[j][27]--;
				}
			}

			operations.push_back("K " + to_string(candidate + 1) + " " + static_cast<char>(letter + 64));
		}
		else {

		}

	};

	cout << operations.size() << endl;

	for (int i = operations.size() - 1; i >= 0; i--) {
		cout << operations[i] << endl;
	}


	cout << endl;
}