#include <stdio.h>

int main()
{

    int a;
    int b = 1;
    int n = 1;

    scanf("%d", &a);

    for (int i = 0; i < a; i++)
    {
        for (int i = 0; i < b; i++)
        {
            printf("%d ", n);
            n++;
        }
        b++;
        printf("\n");
    }
}