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// Autor: Nicolas Wochnik
#include <array>
#include <iostream>
#include <list>
#include <vector>

std::vector<std::vector<char>> array;

struct Move {
  bool is_row;
  size_t index;
  char color;

  Move(bool is_row, size_t index, char color)
      : is_row(is_row), index(index), color(color) {}

  void print() {
    std::cout << (is_row ? 'R' : 'K') << " " << (index + 1) << " " << color
              << "\n";
  }
};

std::vector<Move> moves;

class Row {
private:
  std::array<long, 26> row;

public:
  size_t index;

public:
  Row() : index(), row() { row.fill(0); }

  void add_char(char c) { row[c - 'A']++; }

  void remove_char(char c) { row[c - 'A']--; }

  bool is_one_color() {
    bool has_color = false;

    for (auto count : row) {
      if (count == 0) {
        continue;
      }

      if (has_color) {
        return false;
      }

      has_color = true;
    }

    return true;
  }

  void debug() {
    std::cout << index << " ->\t";
    for (auto item : row) {
      std::cout << item << " ";
    }
    std::cout << "\n";
  }
};

class Board {
private:
  std::list<Row> rows;
  std::list<Row> columns;

public:
  Board() : rows(), columns() {
    rows.resize(array.size());
    columns.resize(array[0].size());

    auto row = rows.begin();
    auto col = columns.begin();

    for (size_t i = 0; i < array.size(); ++i) {
      row->index = i;
      for (size_t j = 0; j < array[i].size(); ++j) {
        row->add_char(array[i][j]);
      }
      row++;
    }

    for (size_t j = 0; j < array[0].size(); ++j) {
      col->index = j;
      for (size_t i = 0; i < array.size(); ++i) {
        col->add_char(array[i][j]);
      }
      col++;
    }
  }

  bool empty() { return rows.size() == 0 && columns.size() == 0; }

  const std::list<Row>::iterator find_one_color_row() {
    return find_one_color(rows.begin(), rows.end());
  }

  const std::list<Row>::iterator find_one_color_col() {
    return find_one_color(columns.begin(), columns.end());
  }

  void remove_row(const std::list<Row>::iterator row) {
    if (row == rows.end()) {
      return;
    }

    if (columns.empty()) {
      rows.erase(row);
      return;
    }

    moves.push_back(
        Move(true, row->index, array[row->index][columns.begin()->index]));

    for (auto &col : columns) {
      col.remove_char(array[row->index][col.index]);
    }

    rows.erase(row);
  }

  void remove_col(const std::list<Row>::iterator col) {
    if (col == columns.end()) {
      return;
    }

    if (rows.empty()) {
      columns.erase(col);
      return;
    }

    moves.push_back(
        Move(false, col->index, array[rows.begin()->index][col->index]));

    for (auto &row : rows) {
      row.remove_char(array[row.index][col->index]);
    }

    columns.erase(col);
  }

  void debug() {
    std::cout << "Rows:\n";
    for (auto &row : rows) {
      row.debug();
    }

    std::cout << "\nColumns:\n";
    for (auto &col : columns) {
      col.debug();
    }
    std::cout << "\n" << std::flush;
  }

private:
  const std::list<Row>::iterator
  find_one_color(const std::list<Row>::iterator begin,
                 const std::list<Row>::iterator end) {
    auto ptr = begin;

    for (; ptr != end; ++ptr) {
      if (ptr->is_one_color()) {
        return ptr;
      }
    }

    return ptr;
  }
} *board;

void load_input() {
  size_t height, width;
  std::cin >> height >> width;

  array.resize(height);

  for (auto &row : array) {
    row.resize(width);

    for (char &item : row) {
      std::cin >> item;
    }
  }

  board = new Board();
}

int main() {
  std::ios_base::sync_with_stdio(false);
  std::cin.tie(nullptr);

  load_input();

  while (!board->empty()) {
    board->remove_row(board->find_one_color_row());
    board->remove_col(board->find_one_color_col());
  }

  std::cout << moves.size() << "\n";
  for (size_t i = moves.size(); i-- != 0;) {
    moves[i].print();
  }

  return 0;
}