import java.util.*;
class PrintRhombusStructure {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
// to print Spaces
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= n - i; j++) {
System.out.print(" ");
}
for (int j = i; j >= 1; j--) {
System.out.print(j);
}
for (int j = 2; j <= i; j++) {
System.out.print(j);
}
for (int j = 1; j < n - i; j++) {
System.out.print(" ");
}
System.out.println();
}
// downword rhombus
for (int i = n; i >= 1; i--) {
for (int j = 1; j <= n - i; j++) {
System.out.print(" ");
}
for (int j = i; j >= 1; j--) {
System.out.print(j);
}
for (int j = 2; j <= i; j++) {
System.out.print(j);
}
for (int j = 1; j < n - i; j++) {
System.out.print(" ");
}
System.out.println();
}
}
}
