public class UseTools 
{
    public static void main(String[] args) 
    {
        int i, s;
        
        s = Tools.sum(1, 10);  // Invoke sum with a = 1 and b = 10
        System.out.println("sum(1,10) = " + s);
        
        s = Tools.sum(23, 36); // Invoke sum with a = 23 and b = 36
        System.out.println("sum(23,36) = " + s);
    }
}