int main()
{
	int row,col;
	int i,j,n,time=0;
	cin>>row>>col;
	int a[100][100];
	int (*p)[100]=a;
	for(i=0;i<row;i++)
		for(j=0;j<col;j++)
			cin>>*(*(p+i)+j);
	for (n=0;;n++)
	{
		for (i=n;i<col-n;i++)
		{
			cout<<*(*(p+n)+i)<<endl;
			time++;//??????????time?????
			}
		if(time==row*col) break;
		for (j=n+1;j<row-n;j++)
		{
			cout<<*(*(p+j)+col-n-1)<<endl;
			time++;
		}
		if(time==row*col) break;
		for (i=col-2-n;i>=n;i--)
		{
			cout<<*(*(p+row-n-1)+i)<<endl;
			time++;
		}
		if(time==row*col) break;
		for (j=row-2-n;j>n;j--)
		{
			cout<<*(*(p+j)+n)<<endl;
			time++;
		}
		if(time==row*col) break;
	}
	return 0;
}

