#include<iostream>
using namespace std;
int main(){
    int x,y,ans;
    const string P="PUM";
    cin>>x>>y;
    for(int i=1;i<=x;i++) {
        for(int j=1;j<y;j++){
            ans++;
        cout<<ans<<" ";  
        }
    cout<<P<<endl;
    ans++;  
    }
}