#include <stdio.h>
int main()
{
    int n = 0;
    while (scanf("%d", &n) != EOF)
    {
        int i,j = 0;
        for (i = 0; i < n; i++)
        {
            int k = 1;
            for (j = 0; j <= i; j++)
            {
                printf("%d ",k);
                k++;
            }
            printf("\n");
        }
    }
    return 0;
}