Overloading Concept: Calculator

In this problem, you will create a program that defines two add methods with the same name but different numbers of parameters, computes the sum of two integers and the sum of three integers respectively, and displays the results to standard output.

Learning Objective: Understand method overloading

Create a calculator class that uses the same add method name with different numbers of parameters.

Input

Line 1: Integer a
Line 2: Integer b
Line 3: Integer c

Output

add(a,b) = [a+b]
add(a,b,c) = [a+b+c]

Example

Input:

1
2
3

Output:

add(a,b) = 3
add(a,b,c) = 6