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#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> PII;
typedef pair<long long,int> PLI;

struct Event{
    char type;
    int ind;
    int let;
};

int R[2005][30];
int C[2005][30];
int board[2005][2005];
int cntR[2005];
int cntC[2005];

int main(){
    ios_base::sync_with_stdio(0);
    int n, m;
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            char x;
            cin>>x;
            board[i][j] = x-'A';
        }
    }

    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            R[i][board[i][j]]++;
            C[j][board[i][j]]++;
        }
    }

    for(int i=1;i<=n;i++){
        for(int j=0;j<26;j++){
            if(R[i][j]) cntR[i]++;
        }
    }

    for(int i=1;i<=m;i++){
        for(int j=0;j<26;j++){
            if(C[i][j]) cntC[i]++;
        }
    }

    queue<Event> Q;
    vector<Event> res;
    for(int i=1;i<=n;i++){
        int let = -1;
        for(int j=0;j<26;j++) if(R[i][j] != 0) let = j;
        if(cntR[i] <= 1 && let != -1) Q.push({'R', i, let});
    }
    for(int i=1;i<=m;i++){
        int let = -1;
        for(int j=0;j<26;j++) if(C[i][j] != 0) let = j;
        if(cntC[i] <= 1 && let != -1) Q.push({'C', i, let});
    }

    while(!Q.empty()){
        Event ev = Q.front();
        Q.pop();
        res.push_back(ev);
        if(ev.type == 'R'){
            for(int i=1;i<=m;i++){
                if(board[ev.ind][i] != -1){
                    C[i][board[ev.ind][i]]--;
                    if(C[i][board[ev.ind][i]] == 0){
                        cntC[i]--;
                        if(cntC[i] == 1){
                            int let = -1;
                            for(int j=0;j<26;j++) if(C[i][j] != 0) let = j;
                            if(let != -1) Q.push({'C', i, let});
                        }
                    }
                    board[ev.ind][i] = -1;
                }
            }
        }
        else{
            for(int i=1;i<=n;i++){
                if(board[i][ev.ind] != -1){
                    R[i][board[i][ev.ind]]--;
                    if(R[i][board[i][ev.ind]] == 0){
                        cntR[i]--;
                        if(cntR[i] == 1){
                            int let = -1;
                            for(int j=0;j<26;j++) if(R[i][j] != 0) let = j;
                            if(let != -1) Q.push({'R', i, let});
                        }
                    }
                    board[i][ev.ind] = -1;
                }
            }
        }
    }

    reverse(res.begin(), res.end());
    cout<<res.size()<<endl;
    for(Event ev: res){
        if(ev.type == 'C') ev.type = 'K';
        cout<<ev.type<<" "<<ev.ind<<" "<<(char)(ev.let+'A')<<endl;
    }
}