#include<stdio.h>
int main()
{
    int i,j,k=1,l,spc,n;
    printf("Enter a number: ");
    scanf("%d",&n);
    spc=n+4-1;
    for(i=1; i<=n; i++)
    {
        for (l=spc; l>=1; l--)
        {
            printf(" ");
        }
        for (j=1; j<=i; j++)
        {
            printf(" %d",k++);
        }
        printf("\n");
        spc--;

    }
    return 0;
}