#include<iostream>
#include<stdlib.h>
using namespace std;
inline void citeste(int &n)
{
    do{cin>>n;}while(!(n>=1 && n<=1000));
}
int main()
{
    int **a,n,m,i,j,k=0,el,l,c;
    citeste(n);
    citeste(m);
    el=m*n;
    a=(int **)calloc(1001,sizeof(int *));
    for(i=1;i<=1000;i++)
        *(a+i)=(int *)calloc(1001,sizeof(int));
    for(i=1;i<=n;i++)
        for(j=1;j<=m;j++)
        do{cin>>a[i][j];}while(!(a[i][j]>=1 && a[i][j]<=32768));
        l=1,c=1;
    while(k<el)
    {
        for(j=c;j<=m && k<el;j++)
            {cout<<a[l][j]<<" ";
            k++;}
        for(i=l+1;i<=n&& k<el;i++)
            {cout<<a[i][m]<<" ";
            k++;}
        for(j=m-1;j>=c&& k<el;j--)
            {cout<<a[n][j]<<" ";
            k++;}
        for(i=n-1;i>=l+1&& k<el;i--)
            {cout<<a[i][c]<<" ";
            k++;}
        l++;
        c++;
        n--;
        m--;
    }
    return 0;
}