#include <iostream>
#include <iomanip>
using namespace std;
const int m = 3;
const int n = 4;

int main ()
{
    int arr[m][n]={{3, 8, 4, 6},
                   {2, 7, 1, 5},
                   {0, 9, -1, 2}};
    for (int i=0; i<m; i++, cout<<endl)
    {
        for (int k=0; k<n; k++) cout << setw(4) << arr[i][k];
    };
    return 0;
}