public class SumMethod 
{
    public static int sum(int a, int b)
    {
        int s, i;  // Help variables used to write program
        
        s = 0;     // s = current total
        
        for (i = a; i <= b; i++ )
            s = s + i;       // Add next number to total
            
        return s;  // Return the total as output
    }
    
    public static void main(String[] args) 
    {
        int i, s;
        
        s = SumMethod.sum(1, 10);  // Invoke sum with a = 1 and b = 10
        System.out.println("sum(1,10) = " + s);
        
        s = SumMethod.sum(23, 36); // Invoke sum with a = 23 and b = 36
        System.out.println("sum(23,36) = " + s);
    }
}