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#include <bits/stdc++.h>

using namespace std;

char c[2100][2100];
int ck[2100][30], cr[2100][30];
int blk[2100], blr[2100];

vector<string> ans;

int main()
{
    int n,m, rn, rm;
    cin>>n>>m;
    rn=n; rm=m;
    for(int i=0; i<n; i++)
        for(int j=0; j<m; j++)
        {
            char k;
            cin>>k;
            k-='A';
            c[i][j]=k;
            ck[j][k]++;
            cr[i][k]++;
        }
    while(rm||rn)
    {
        for(int i=0; i<m; i++)
            for(int k=0; k<='Z'-'A'; k++)
            {
                if(ck[i][k]==rn&&!blk[i])
                {
                    string s = "K ";
                    s+=to_string(i+1);
                    s+=" ";
                    s+='A'+k;
                    ans.push_back(s);
                    rm--;
                    blk[i]=1;
                    for(int z=0; z<m; z++)
                    {
                        cr[z][c[z][i]]--;
                    }
                    break;
                }
                    
            }
        if(rm==0||rn==0)
            break;
        for(int i=0; i<n; i++)
            for(int k=0; k<='Z'-'A'; k++)
            {
                if(cr[i][k]==rm&&!blr[i])
                {
                    string s = "R ";
                    s+=to_string(i+1);
                    s+=" ";
                    s+='A'+k;
                    ans.push_back(s);
                    rn--;
                    blr[i]=1;
                    for(int z=0; z<m; z++)
                    {
                        ck[z][c[i][z]]--;
                    }
                    break;
                }
            }
    }
    cout<<ans.size()<<"\n";
    for(auto it=ans.rbegin(); it!=ans.rend(); it++)
        cout<<*it<<"\n";
}