#include<stdio.h>
int main() {
scanf("%d", &n);

if(n < 0){
    printf("Invalid Input");
    return 0;
}
int mid = n / 2;
for(int i = 0; i <= mid; i++){
    int count = 2 * i + 1;
    int spaces = mid - i;
    for (int s = 0; s < spaces;
    s++)
    printf(" ");
    for (int num = 1; num <= count; num++)
    printf("%d", num);
    printf("\n");
}
for(int i = mid - 1; i >= 0;
i--) {
    int count = 2 * i +1;
    int spaces = mid - i;
    for (int s = 0; s < spaces;
    s++)
    printf(" ");
    for (int num = 1; num <= count; num++)
    printf("%d", num);
    printf("\n");
}
return 0;
}