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#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;

constexpr int N = 2000;
string mapa[N+9];
int cntr[N+9][30];
int cntk[N+9][30];
bool usedr[N+9];
bool usedk[N+9];

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n,m;
    cin >> n >> m;
    for (int x=0;x<n;x++)cin>>mapa[x];
    for (int x=0;x<n;x++){
        for (int y=0;y<m;y++){
            cntr[x][mapa[x][y]-'A']++;
            cntk[y][mapa[x][y]-'A']++;
        }
    }
    vector<pair<char,pair<int,char>>> ruchy;
    int cnt=0;
    while(cnt<n+m){
        for (int x=0;x<n;x++){
            int ile=0;
            if (usedr[x])continue;
            for (int a=0;a<27;a++){
                if (cntr[x][a]>0)ile++;
            }
            if (ile==0){
                usedr[x]=1;
                cnt++;
                continue;
            }
            if (ile==1){
                for (int a=0;a<27;a++){
                    if (cntr[x][a]>0){
                        ruchy.push_back({'R',{x+1,'A'+a}});
                        break;
                    }
                }
                cnt++;
                usedr[x]=1;
                for (int y=0;y<m;y++){
                    cntk[y][mapa[x][y]-'A']--;
                }
            }
        }
        for (int y=0;y<m;y++){
            int ile=0;
            if (usedk[y])continue;
            for (int a=0;a<27;a++){
                if (cntk[y][a]>0)ile++;
            }
            if (ile==0){
                cnt++;
                usedk[y]=1;
                continue;
            }
            if (ile==1){
                for (int a=0;a<27;a++){
                    if (cntk[y][a]>0){
                        ruchy.push_back({'K',{y+1,'A'+a}});
                        break;
                    }
                }
                cnt++;
                usedk[y]=1;
                for (int x=0;x<n;x++){
                    cntr[x][mapa[x][y]-'A']--;
                }
            }
        }
    }
    cout << ruchy.size() << '\n';
    reverse(ruchy.begin(),ruchy.end());
    for (pair<char,pair<int,char>> xd:ruchy){
        cout << xd.first << ' ' << xd.second.first << ' ' << xd.second.second << '\n';
    }
    return 0;
}