加油

#include <iostream>
#include <stdio.h>

int main() {
    int n, m;
    scanf("%d%d", &n, &m);
    for (int i = 1; i <= n*m; i++) {
        for (int j = i; j % m; j++, i++) {
            printf("%d ", j);
        }
        printf("PUM\n");
    }
}