Square and cube of numbers given by the keyboard

 #include<stdio.h>

#include<conio.h>

void main()

{

           int a,b,c;

           clrscr ();

   printf("enter the value of a and b \n ");

   scanf("%d %d",&a,&b);

          c=(a+b)*(a+b);

   printf("%d",c);

          c=(a+b)*(a+b)*(a+b);

   printf("\n %d",c);

          c=(a-b)*(a+b);

   printf("\n %d",c);

         c=(a-b)*(a-b)*(a-b);

   printf("\n %d",c);

    getch();

}

Output : 

enter the value of a and b :

7

3

100

 1000

 40

 64

[Process completed (code 10) - press Enter]