#include<bits/stdc++.h> using namespace std; int main(){ int n,m; cin>>n>>m; int a[n][m]; for(int i=0;i<n;i++){ for(int j=0;j<m;j++){ cin>>a[i][j]; } } int b; for(int i=0;i<n;i++){ b = a[n-1][i]; a[n-1][i] = a[i][m-1]; a[i][m-1] = b; for(int i=0;i<m;i++){ b = a[n-2][i]; a[n-2][i] = a[i][m-2]; a[i][m-2] = b; } } for(int i=0;i<n;i++){ for(int j=0;j<m;j++){ cout<<a[i][j]<<" "; } cout<<endl; } return 0; }