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#include <bits/stdc++.h>
using namespace std;

const int MAXN = 2005;

char s[MAXN][MAXN];

int lic_w[MAXN][100];
int lic_k[MAXN][100];

vector<pair<int, int>> v;

vector<pair<int, pair<int, char>>> res;

int main() {
    int n, m;
    scanf("%d%d", &n, &m);
    
    for (int i=0; i<n; i++) {
        scanf("%s", s[i]);
    }
    
    for (int i=0; i<n; i++) {
        for (int j=0; j<m; j++) {
            if (lic_w[i][s[i][j]]++ == 0)
                lic_w[i][0]++;
            
            if (lic_k[j][s[i][j]]++ == 0)
                lic_k[j][0]++;
        }
    }
    
    for (int i=0; i<n; i++) {
        if (lic_w[i][0] == 1)
            v.push_back({0, i});
    }
    
    for (int j=0; j<m; j++) {
        if (lic_k[j][0] == 1)
            v.push_back({1, j});
    }
    
    while (!v.empty()) {
        auto p = v.back();
        v.pop_back();
        
        char color = 'A';
        
        if (p.first == 0) {
            // row
            int i = p.second;
            
            for (int j=0; j<m; j++) {
                if (s[i][j] == -1)
                    continue;
                
                color = s[i][j];
                
                if (--lic_k[j][s[i][j]] == 0)
                    if (--lic_k[j][0] == 1)
                        v.push_back({1, j});
                    
                s[i][j] = -1;
            }
            
            res.push_back({0, {i, color}});
        }
        else {
            // column
            int j = p.second;
            
            for (int i=0; i<n; i++) {
                if (s[i][j] == -1)
                    continue;
                
                color = s[i][j];
                
                if (--lic_w[i][s[i][j]] == 0)
                    if (--lic_w[i][0] == 1)
                        v.push_back({0, i});
                    
                s[i][j] = -1;
            }
            
            res.push_back({1, {j, color}});
        }
    }
    
    printf("%d\n", (int)res.size());
    
    for (int i=res.size()-1; i >= 0; i--) {
        printf("%c %d %c\n", res[i].first == 0 ? 'R' : 'K', res[i].second.first+1, res[i].second.second);
    }
    
    
    return 0;
}