#include <stdio.h>

int main() {
    int num = 0;
    while (scanf("%d", &num) != EOF) 
    {
        for (int i = 1; i <=num;i++ )
        {
            for (int j = 1; j <=i; j++)
            {
                printf("%d ", j);
            }
            printf("\n");
        }
    }
    return 0;
}