public static void main(String[] args) {
        int a, b, c ;
        a = 2;
        b = 3;
        if (a < b) System.out.println("a is less than b");
        if (a == b) System.out.println("you wont see this");
        System.out.println();
        c = a - b;
        if(c >= 0) System.out.println("c is non negative");
        if(c < 0) System.out.println("c is negative");
        System.out.println();
        c = b - a;
        if(c >= 0) System.out.println("c is non negative");
        if(c < 0) System.out.println("c is negative");
        
    }