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

#define FOR(i, a, b) for(int i = (a); i <= (b); ++i)
#define REP(i, n) for(int i = 0; i < (n); ++i)

template<class T> int size(T && a) {
	return (int)(a.size());
}
ostream& operator << (ostream &os, string str) {
    for(char c : str) os << c;
    return os;
}
template <class A, class B> ostream& operator << (ostream &os, const pair<A, B> &p) {
	return os << '(' << p.first << "," << p.second << ')';
}
template <class T> auto operator << (ostream &os, T &&x) -> decltype(x.begin(), os) {
	os << '{';
	for(auto it = x.begin(); it != x.end(); ++it)
		os << *it << (it == prev(x.end()) ? "" : ", ");
	return os << '}';
}
template <class T> ostream& operator << (ostream &os, vector<vector<T>> vec) {
    for(auto x : vec)
    	os << "\n  " << x;
    return os;
}
void dump() {}
template <class T, class... Args> void dump(T &&x, Args... args) {
    cerr << x << "; ";
    dump(args...);
}
#ifdef DEBUG
# define debug(x...) cerr << "[" #x "]: ", dump(x), cerr << '\n'
#else 
# define debug(...) 0
#endif

//--------------------------------------------------

struct Paint {
	bool is_row;
	int number;
	int color;

	Paint(bool is_row_, int number_, int color_)
		: is_row(is_row_), number(number_), color(color_) {}
};

ostream& operator << (ostream &os, Paint p) {
	return os << (p.is_row ? 'R' : 'K') << ' ' << p.number + 1 << ' '
			  << char(p.color + 'A');
}

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

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

	constexpr int C = 26;
	vector<array<int, C + 1>> row_colors(n), col_colors(m);
	REP (c, C + 1) {
		REP (i, n) row_colors[i][c] = 0;
		REP (j, m) col_colors[j][c] = 0;
	}

	REP (i, n) REP (j, m) {
		char c; cin >> c;
		c -= 'A';
		++row_colors[i][c];
		++col_colors[j][c];
	}

	deque<Paint> ready_to_paint;
	vector<bool> row_done(n, false), col_done(m, false);
	REP (c, C) {
		REP (i, n) {
			if (row_colors[i][c] == m) {
				ready_to_paint.emplace_back(true, i, c);
				row_done[i] = true;
			}
		}

		REP (j, m) {
			if (col_colors[j][c] == n) {
				ready_to_paint.emplace_back(false, j, c);
				col_done[j] = true;
			}
		}
	}

	debug(ready_to_paint);

	vector<Paint> answer;

	auto paint = [&](Paint p) {
		auto [is_row, number, color] = p;
		answer.emplace_back(is_row, number, color);

		if (is_row) {
			REP (j, m) {
				--col_colors[j][color];
				++col_colors[j].back();
			}

			REP (j, m) if (!col_done[j]) {
				REP (c, C) {
					if (col_colors[j][c] + col_colors[j].back() == n) {
						ready_to_paint.emplace_back(false, j, c);
						col_done[j] = true;
					}
				}
			}
		} else {
			REP (i, n) {
				--row_colors[i][color];
				++row_colors[i].back();
			}

			REP (i, n) if (!row_done[i]) {
				REP (c, C) {
					if (row_colors[i][c] + row_colors[i].back() == m) {
						ready_to_paint.emplace_back(true, i, c);
						row_done[i] = true;
					}
				}
			}
		}
	};

	while (!ready_to_paint.empty()) {
		paint(ready_to_paint.front());
		ready_to_paint.pop_front();
	}

	reverse(answer.begin(), answer.end());
	cout << ssize(answer) << '\n';
	for (Paint p : answer)
		cout << p << '\n';
}