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#include <bits/stdc++.h>
#ifdef dbg
#define D(...) fprintf(stderr, __VA_ARGS__)
#define DD(...) D("[Debug] "#__VA_ARGS__ " = "), \
              debug_helper::debug(__VA_ARGS__), D("\n")
#include "C:\Users\wsyear\Desktop\OI\templates\debug.hpp"
#else
#define D(...) ((void)0)
#define DD(...) ((void)0)
#endif
#define rep(i, j, k) for (int i = (j); i <= (k); ++i)
#define per(i, j, k) for (int i = (j); i >= (k); --i)
#define SZ(v) int((v).size())
#define ALL(v) (v).begin(),(v).end()
#define fi first
#define se second
using ll = long long;
using pii = std::pair<int, int>;
using pll = std::pair<ll, ll>;

template<class T> void chkmn(T &x, T y) { if (y < x) x = y; }
template<class T> void chkmx(T &x, T y) { if (y > x) x = y; }

using namespace std;

const int maxn = 2010;

int n, m, a[maxn][maxn], c1[maxn][30], c2[maxn][30];
int v1[maxn], v2[maxn], r1[maxn], r2[maxn];
char s[maxn];
vector<tuple<char, int, char>> ans;

void del(int x, int y) {
  if (!a[x][y]) return;
  c1[x][a[x][y]]--;
  if (!c1[x][a[x][y]]) r1[x]--;
  c2[y][a[x][y]]--;
  if (!c2[y][a[x][y]]) r2[y]--;
  a[x][y] = 0;
}

int main() {
  cin.tie(nullptr) -> ios::sync_with_stdio(false);
  cin >> n >> m;
  rep (i, 1, n) {
    cin >> s;
    rep (j, 1, m) a[i][j] = s[j - 1] - 'A' + 1;
  }
  rep (i, 1, n) rep (j, 1, m) c1[i][a[i][j]]++;
  rep (i, 1, n) rep (j, 1, m) c2[j][a[i][j]]++;
  rep (i, 1, n) rep (j, 1, 26) if (c1[i][j]) r1[i]++;
  rep (i, 1, m) rep (j, 1, 26) if (c2[i][j]) r2[i]++;
  rep (_, 1, n + m) {
    int id = 0, ty = 0;
    rep (i, 1, n) if (!v1[i] && r1[i] == 1) id = i, ty = 1;
    rep (i, 1, m) if (!v2[i] && r2[i] == 1) id = i, ty = 2;
    if (!id) {
      int ok = 1;
      rep (i, 1, n) if (r1[i]) ok = 0;
      rep (i, 1, m) if (r2[i]) ok = 0;
      if (!ok) return cout << "shz sb\n", 0;
      break;
    }
    if (ty == 1) {
      int qwq = 0;
      rep (j, 1, 26) if (c1[id][j]) qwq = j;
      ans.emplace_back('R', id, 'A' + qwq - 1);
      v1[id] = 1;
      rep (j, 1, m) del(id, j);
    } else {
      int qwq = 0;
      rep (j, 1, 26) if (c2[id][j]) qwq = j;
      ans.emplace_back('K', id, 'A' + qwq - 1);
      v2[id] = 1;
      rep (j, 1, n) del(j, id);
    }
  }
  reverse(ALL(ans));
  cout << SZ(ans) << '\n';
  for (auto [x, y, z] : ans) cout << x << " " << y << " " << z << '\n';
}