code

#include <stdio.h>

int main()
{
    int N;
    scanf("%d", &N);
    int x = N, var = 1;
    for (int i = 0; i < N; i++)
    {
        for (int j = 0; j < i; j++)
        {
            printf("0 ");
        }
        for (int j = 0; j < x; j++)
        {
            printf("%d ", var);
        }
        var++;
        x--;
        printf("\n");
    }
}