def addition(a, b): return a + b def addition_inf(*argv): res = 0 for arg in argv: res += arg return res if __name__=="__main__": assert addition(1, 2) == 3 assert not addition(1, 2) == 2 assert addition_inf(1, 1, 1) == 3 assert not addition_inf(1, 1, 1) == 2 assert addition_inf(1, 1, 1) == addition(1, 2)