#include<stdio.h>

int main() {
    int n, 
    scanf("%d", &n);
    if (n < 0)
    {
        printf("Invalid input");
        return 0;
     }
    
    int num = 1;
    for (int i = 1; i <= n; i++) 
    {
        for (int j = 1; j <= i; j++) {
            printf("%d ", )
        }
    }