#include <iostream>
using namespace std;

int main(int argc, char** argv) {
//Declare Variables
int X;
int i=1;

cout << "Input a positive number." << endl;
cin >> X;
cout << endl;

//Input Validation
while (X<0) {
cout << "Invalid entry. Enter a number greater than 0." << endl;
cin >> X ;
}
int A = X;
//This section makes the X
for (int row=1; row<=A; row++, X--) {

for (int col=1; col<=A; col++){
if ((row ==(A/2)+1) && (col == (A/2)+1)){
    cout << X;
}
else if((row==col)||(col==(A+1)-row)) {
    cout << X;

}

else cout << " ";
}
cout << endl;
}


return 0;
}