## The challenge

Create a function that returns the sum of the two lowest positive numbers given an array of minimum 4 positive integers. No floats or non-positive integers will be passed.

For example, when an array is passed like `[19, 5, 42, 2, 77]`, the output should be `7`.

`[10, 343445353, 3453445, 3453545353453]` should return `3453455`.

## The solution in Python code

Option 1:

 ``````1 2 `````` ``````def sum_two_smallest_numbers(numbers): return sum(sorted(numbers)[:2]) ``````

Option 2:

 ``````1 2 3 `````` ``````def sum_two_smallest_numbers(num_list): num_list.sort() return num_list[0] + num_list[1] ``````

Option 3:

 ``````1 `````` ``````sum_two_smallest_numbers = lambda A: sum( sorted( filter( lambda x:x>0, A) )[:2] ) ``````

## Test cases to validate our solution

 `````` 1 2 3 4 5 6 7 8 9 10 `````` ``````import test from solution import sum_two_smallest_numbers @test.describe("Fixed Tests") def fixed_tests(): @test.it('Basic Test Cases') def basic_test_cases(): test.assert_equals(sum_two_smallest_numbers([5, 8, 12, 18, 22]), 13) test.assert_equals(sum_two_smallest_numbers([7, 15, 12, 18, 22]), 19) test.assert_equals(sum_two_smallest_numbers([25, 42, 12, 18, 22]), 30) ``````