package chelper;

import io.InputReader;
import io.OutputWriter;

public class SnarkE {
  public void solve(int testNumber, InputReader in, OutputWriter out) {
    int n = in.nextInt();

    boolean[][] a = new boolean[n][n];

    for (int i = 0; i < n; i++) {
      String s = in.nextString();
      for (int j = 0; j < n; j++) {
        a[i][j] = s.charAt(j) == '1';
      }
    }

    int[][] dpi = new int[n][n];
    int[][] dpj = new int[n][n];

    for (int i = n - 1; i >= 0; i--) {
      for (int j = 0; j < n; j++) {
        dpi[i][j] = a[i][j] ? 1 : 0;
      }
    }
  }
}