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#include <bits/stdc++.h>

using namespace std;

#define ll long long

#define rng(i,a,b) for(int i=int(a);i<int(b);i++)
#define rep(i,b) rng(i,0,b)

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<vvi> vvvi;

typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<vvl> vvvl;

typedef pair<int,int> ii;

template<class t> using vc=vector<t>;
template<class t> using vvc=vc<vc<t>>;

const int MOD = 998244353;

ll read(){
    ll i;
    cin>>i;
    return i;
}

vi readvi(int n,int off=0,int shift=0){
    vi v(n+shift);
    rep(i,shift)v[i]=0;
    rep(i,n)v[i+shift]=read()+off;
    return v;
}

void YesNo(bool condition, bool do_exit=true) {
    if (condition)
        cout << "Yes" << endl;
    else
        cout << "No" << endl;
    if (do_exit)
        exit(0);
}

int main(void ) {
    ios::sync_with_stdio(false);
    cin.tie(NULL);

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

    vi ile_roznych_liter_w(n,0);
    vi ile_roznych_liter_k(m,0);

    vector<map<char,int>> ile_liter_w(n);
    vector<map<char,int>> ile_liter_k(m);

    vector<string> row(n);
    rep(i,n) {
        cin >> row[i];
        rep(j,m) {
            ++ile_liter_k[j][row[i][j]];
            ++ile_liter_w[i][row[i][j]];
        }
    }

    queue<int> q_w;
    queue<int> q_k;

    rep(i,n) {
        ile_roznych_liter_w[i] = ile_liter_w[i].size();
        if (ile_roznych_liter_w[i] == 1)
            q_w.push(i);
    }


    rep(j,m) {
        ile_roznych_liter_k[j] = ile_liter_k[j].size();
        if (ile_roznych_liter_k[j] == 1)
            q_k.push(j);
    }

    vector<string> out;

    while (q_w.size() + q_k.size() > 0) {
        if (!q_w.empty()) {
            int i = q_w.front();
            q_w.pop();
            if (ile_roznych_liter_w[i] == 1) {
                char ch;
                for (auto [zn, cnt] : ile_liter_w[i])
                    if (cnt > 0)
                        ch = zn;
                out.push_back("R " + to_string(i + 1) + " " + ch);
                ile_roznych_liter_w[i] = 0;
                ile_liter_w[i][ch] = 0;
                rep(j,m) {
                    if (row[i][j] != '.') {
                        --ile_liter_k[j][row[i][j]];
                        if (ile_liter_k[j][row[i][j]] == 0) {
                            --ile_roznych_liter_k[j];
                            if (ile_roznych_liter_k[j] == 1)
                                q_k.push(j);
                        }
                        row[i][j] = '.';
                    }
                }
            }

        }

        if (!q_k.empty()) {
            int j = q_k.front();
            q_k.pop();
            if (ile_roznych_liter_k[j] == 1) {
                char ch;
                for (auto [zn, cnt] : ile_liter_k[j])
                    if (cnt > 0)
                        ch = zn;
                out.push_back("K " + to_string(j + 1) + " " + ch);
                ile_roznych_liter_k[j] = 0;
                ile_liter_k[j][ch] = 0;
                rep(i,n) {
                    if (row[i][j] != '.') {
                        --ile_liter_w[i][row[i][j]];
                        if (ile_liter_w[i][row[i][j]] == 0) {
                            --ile_roznych_liter_w[i];
                            if (ile_roznych_liter_w[i] == 1)
                                q_w.push(i);
                        }
                        row[i][j] = '.';
                    }
                }
            }

        }
    }

    cout << out.size() << "\n";
    reverse(out.begin(), out.end());
    for (auto s : out)
        cout << s << "\n";

    return 0;
}