2.2. Write a program that subtracts two integers.

#include<stdio.h> 
#include<conio.h>
void main () 
{          

int a,b;         

clrscr ();

printf("a= ");         

scanf ("d", &a);

printf("b= ");

scanf("%d", &b);

printf("Subtraction= %d", a-b);

getch();
}