#include <iostream>
#include <cmath>

using namespace std;

int A[1000][1000];

int main()
{
    int x, y, n, m, i, j;

    cin >> x >> y >> n >> m;

    for(i = 1; i <= n; i++)
    {
        for(j = 1; j <= m; j++)
        {
            A[i][j] = abs(i - x) + abs(j - y) + 1;
            cout << A[i][j] << " ";
        }
        cout << endl;
    }

    return 0;
}