723. PUM(C++语法题)

代码：

#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++)
        {
            cout << k << ' ';
            k ++;
        }
        
        cout << "PUM" << endl;
        k++;
    }
    return 0;
}