#include<iostream.h>
#include<conio.h>
void test(int,int);
int a[20][20];
int r,c,b,s,n,num=1;
void main()
{
cout<<"Pleas Enter A Number :\n";
cin>>n; 
for(r=0;r<n;r++)
for(c=0;c<n;c++)

a[r][c]=0;
s=(n/2);
r=0;
c=s;
a[r][c]=num;
for(b=1;b<n*n;b++)
{
if(r!=0 && c==0)
{
  r=r-1;
  c=s+s;
  test (r,c);
}
else if(r==0 && c!=0 )
{
r=s+s;
c=c-1;
test (r,c);
}
else if(a[r-1][c-1]==0)
{
r=r-1;
    c=c-1;
    test (r,c);
}

  else
  test (r,c);
}
for(r=0;r<n;r++){
for(c=0;c<n;c++){
cout<<a[r][c]<<"\t";}
cout<<endl;}
getch();
}
void test(int ro,int co)
{
if(a[ro][co]>0){
num++;r=r+1;
a[r][c]=num;}
else
  num++;a[r][c]=num;
}