Find positive or negative number

#include<stdio.h>

#include<conio.h>

void main()

{

int a;

clrscr();

printf("\nEnter any number  :");

scanf("%d",&a);

if(a>=0)

{

printf("\nIt is a positive number");

}

else

{

printf("\nIt is a negative number");

}

getch();

}

                               Output

Enter  any number  :3 It is a positive number