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#include <cstdio>
#include <set>

using namespace std;

char tab[2001][2001];

int sums_row[2001];
int sums_col[2001];

int sums_row_char[26][2001];
int sums_col_char[26][2001];

int usun_elem[2001];  
pair<pair<char, char>, int> ret[4001];
set<int> left_rows;
set<int> left_cols;

int main()
{
  int n, m;
  scanf("%d %d", &n, &m);
  
  for (int i = 0; i < n; i++)
  {
    scanf("%s", tab[i]);
  }
  
  for (int i = 0; i < n; i++)
  {
    sums_row[i] = m;
    left_rows.insert(i);
  }
  for (int i = 0; i < m; i++)
  {
    sums_col[i] = n;
    left_cols.insert(i);
  }
  
  for (int i = 0; i < n; i++)
  {
    for (int j = 0; j < m; j++)
    {
      sums_row_char[tab[i][j] - 'A'][i]++;
    }
  }

  for (int j = 0; j < m; j++)
  {
    for (int i = 0; i < n; i++)
    {
      sums_col_char[tab[i][j] - 'A'][j]++;
    }
  }
  
  
  int ile_ret = 0;
  
  //printf("%d %d\n", left_cols.size(), left_rows.size());
  for (int step = 0; step < n + m; step++)
  {
    int ile_usun = 0;
    for (auto rows : left_rows)
    {
      if (left_cols.empty()) break;
      int first_col = *left_cols.begin();;
      int i = rows;
      if (sums_row_char[tab[i][first_col] - 'A'][i] == sums_row[i])
      {
        ret[ile_ret] = {{'R', tab[i][first_col]}, i};
        ile_ret++;
        usun_elem[ile_usun] = i;
        ile_usun++;
        for (auto it : left_cols)
        {
          if (tab[i][it] != '0')
          {
            sums_col_char[tab[i][it] - 'A'][it]--;
            sums_col[it]--;
            tab[i][it] = '0';
          }
        }
      }
    }
    for (int i = 0; i < ile_usun; i++)
      left_rows.erase(usun_elem[i]);

    ile_usun = 0;
    for (auto cols : left_cols)
    {
      if (left_rows.empty()) break;
      int first_row = *left_rows.begin();;
      int j = cols;
      if (sums_col_char[tab[first_row][j] - 'A'][j] == sums_col[j])
      {
        ret[ile_ret] = {{'K',tab[first_row][j]}, j};
        ile_ret++;
        usun_elem[ile_usun] = j;
        ile_usun++;
        for (auto it : left_rows)
        {
          if (tab[it][j] != '0')
          {
            sums_row_char[tab[it][j] - 'A'][it]--;
            sums_row[it]--;
            tab[it][j] = '0';
          }
        }
      }
    }
    for (int i = 0; i < ile_usun; i++)
      left_cols.erase(usun_elem[i]);
  }
  
  //printf("%d %d\n", left_cols.size(), left_rows.size());

  printf("%d\n", ile_ret);
  for (int i = ile_ret - 1; i >= 0; i--)
  {
    printf("%c %d %c\n", ret[i].first.first, ret[i].second + 1, ret[i].first.second);
  }
  return 0;
}