sb prog 9

#include <iostream>
using namespace std;

int main() {
    int n;
    cin >> n;
    int a[n][n];
    int currNr = 2;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            a[i][j] = currNr;
            currNr += 2;
        }
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            cout << a[i][j] << ' ';
        }
        cout << endl;
    }

    return 0;
}