Construct a Pyramid of Numbers ~ Bachelor Zone

/* Write a C program to construct a pyramid of numbers. */

#include<stdio.h>
#include<conio.h>

void main()
{
int num,i,y,x=35;
clrscr();
printf("\nEnter the number to generate the pyramid:\n");
scanf("%d",&num);

for(y=0;y<=num;y++)
{
  /*(x-coordinate,y-coordinate)*/
  gotoxy(x,y+1);

  /*for displaying digits towards the left and right of zero*/
  for(i=0-y;i<=y;i++)

  printf("%3d",abs(i));
  x=x-3;
}
getch();
}