#include <iostream>
using namespace std;
int main () {
int n, m;
cin >> n >> m;
for (int i = 0, k = 1; i < n; i ++ ) {
for (int j = 0; j < m - 1; j ++ ) {
printf("%d ", k ++ );
}
puts("PUM");
k ++ ;
}
return 0;
}