class Sub
{
public static void main(String[] arg)
{
int a,b,c;
Scanner s=new Scanner(System.in);
System.out.println("Enter first number");
a=s.nextInt();
System.out.println("Enter second number");
b=s.nextInt();
if(a>b)
c=a-b;
else
c=b-a;
System.out.println("Subtraction of two numbers is : "+c);
}
}