#!/usr/bin/env python3

do_add = lambda a, b: a + b

def do_add_2(a, b):
    return a + b

def incr(base, inc = 1):
    return base + inc

def var_args(first_arg = "first", *args):
    print("fist arg:", first_arg)
    print("rest args:", args)

if __name__ == "__main__":
    print("1 + 2 =", do_add(1, 2))
    print("1 + 2 =", do_add_2(1, 2))
    print("1 inc 1 =", incr(1))
    print("1 inc 1 =", incr(1, inc = 1))
    print("1 inc 2 =", incr(1, inc = 2))
    var_args()
    var_args("fist argument", "1", "2", "3")