Area of square while sides are given from the user

 #include<stdio.h>

#include<conio.h>

void main()

{

          int a, aos;

         clrscr ();

  printf("Enter the side of square a=");

         scanf("%d",&a);

         aos=a*a;

  printf("the value of aos is %d",aos);

  

  

  getch ();

}

Output :

Enter the side of square a=8

the value of aos is 64

[Process completed (code 10) - press Enter]