#4

#include<bits/stdc++.h>
#include <stdio.h>
using namespace std;
#define REP(var, start, end) for(int var = start; var < end; var++)

int main() {
  int n, m;
  scanf("%d %d", &n, &m);
  int array [n][m];

  //fill
  REP(x, 0, n)
  {
    REP(y, 0, m)
    {
      scanf("%d", &array[x][y]);
    }
  }

  int i, j;

  scanf("%d %d", &i, &j);
  int buffer;
  REP(x, 0, n)
  {
    buffer = array[x][i];
    array[x][i] = array[x][j];
    array[x][j] = buffer;
  }

  //print
  REP(x, 0, n)
  {
    REP(y, 0, m)
    {
      printf("%d ", array[x][y]);
    }
    cout<<"\n";
  }

}