#include <iostream>

using namespace std;

int a[1005][1005];

int main()
{
    int n,m,i,k,j;
    cin>>n>>m;
    for (i=1; i<=n; i++)
    {
        for (j=1; j<=m; j++)
            cin>>a[i][j];
    }
    for (k=1; k<=(n+1)/2; k++)
    {
        for (i=k; i<=m-k+1; i++)
        {
            cout<<a[k][i]<<" ";
        }
        for (i=k+1; i<=n-k+1; i++)
            cout<<a[i][n-k+1]<<" ";
        for (i=m-k; i>=k; i--)
        {
            cout<<a[m-k+1][i]<<" ";
        }
        for (i=n-k; i>=k+1; i--)
        {
            cout<<a[i][k]<<" ";
        }
    }
}