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#include<bits/stdc++.h>
using namespace std;
#ifdef LOCAL
template <class T, class U> auto &operator<<(ostream &out, pair<T, U> a) { return out << "(" << a.first << ", " << a.second << ")"; }
template <class T, class = class enable_if<!is_same<T, string>(), class T::iterator>::type> auto &operator<<(ostream &out, T a) {
    out << "{";
    bool fi = 1;
    for(auto b : a) {
        if(fi) {out<<b; fi=0;}
        else out<<", "<<b;
    }
    return out << "}";
}

template <class T, class X, class Y> auto &operator<<(ostream &out, const priority_queue<T,X,Y>& a) {auto b = a; vector<T> v; while(!b.empty()) {v.push_back(b.top()); b.pop();} return out<<v; }
void dump(){
   cerr << "\e[39m"<<"\n";
}
template <class T, class... Ts> void dump(T a, Ts... x) {
   cerr << a << ", ";
   dump(x...);
}
#define debug(...) cerr << "\e[91m"<<__func__<<":"<<__LINE__<<"\t"<<"[" #__VA_ARGS__ "]: ", dump(__VA_ARGS__)
#else
#define debug(...) ;
#endif

template<class C> C reversed(C c) {reverse(c.begin(),c.end()); return c;}
#define rep(i, n) for(int i=0;i<(int)(n);i++)
#define all(X) (X).begin(), (X).end()
#define mp make_pair
#define st first
#define nd second
typedef long long ll;
typedef pair<int,int> pii;

constexpr int COLORS = 128;

struct Operation {
    char type, color;
    int no;
};

int32_t main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m;
    cin >> n >> m;

    vector<vector<char>> picture(n, vector<char>(m));
    vector<vector<int>> ct_cols(m, vector<int>(COLORS));
    vector<vector<int>> ct_rows(n, vector<int>(COLORS));
    vector<int> diff_cols(m);
    vector<int> diff_rows(n);

    rep(i, n) rep(j, m) {
        cin >> picture[i][j];
        ct_cols[j][picture[i][j]]++;
        ct_rows[i][picture[i][j]]++;
    }

    rep(i, n) {
        int diff = 0;
        rep(j, COLORS) {
            if (ct_rows[i][j] > 0) {
                diff++;
            }
        }
        diff_rows[i] = diff;
    }

    rep(j, m) {
        int diff = 0;
        rep(i, COLORS) {
            if (ct_cols[j][i] > 0) {
                diff++;
            }
        }
        diff_cols[j] = diff;
    }

    vector<Operation> operations;
    rep(i, n) {
        char color = picture[i][0];
        bool same = true;
        rep(j, m) {
            if (picture[i][j] != color) {
                same = false;
                break;
            }
        }
        if (same) {
            operations.push_back({'R', color, i});
            ct_rows[i][color] = 0;
            diff_rows[i] = 0;
        }
    }

    rep(j, m) {
        char color = picture[0][j];
        bool same = true;
        rep(i, n) {
            if (picture[i][j] != color) {
                same = false;
                break;
            }
        }
        if (same) {
            operations.push_back({'K', color, j});
            ct_cols[j][color] = 0;
            diff_cols[j] = 0;
        }
    }

    for (int i = 0;i < operations.size();i++) {
        if (operations[i].type == 'R') {
            for (int j = 0;j < m;j++) {
                ct_cols[j][operations[i].color]--;
                if (ct_cols[j][operations[i].color] == 0) {
                    diff_cols[j]--;
                    if (diff_cols[j] == 1) {
                        rep (k, COLORS) {
                            if (ct_cols[j][k] > 0) {
                                operations.push_back({'K', (char) k, j});
                                break;
                            }
                        }
                    }
                }
            }
        }
        else {
            for (int j = 0;j < n;j++) {
                ct_rows[j][operations[i].color]--;
                if (ct_rows[j][operations[i].color] == 0) {
                    diff_rows[j]--;
                    if (diff_rows[j] == 1) {
                        rep (k, COLORS) {
                            if (ct_rows[j][k] > 0) {
                                operations.push_back({'R', (char) k, j});
                                break;
                            }
                        }
                    }
                }
            }
        }
    }

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

    while (!operations.empty()) {
        Operation op = operations.back();
        operations.pop_back();

        cout << op.type << " " << op.no + 1 << " " << op.color << "\n";
    }

    return 0;
}