#include<stdio.h>

int main() {
    int n, i, j;
    if (scanf("%d", &n) != 1) return 0;
    
    if (n <= 0 || n % 2 == 0) {
        printf("Invalid input\n");
    } else {
        for (i = 0; i < n; i++) {
            for (j = 0; j < i; j++)
printf(" ");
            for (j = 0; j < 2 *)
        }
    }
}