Problem1.py

import unittest

def multiple3_5(high:int) -> int:
    sum = 0
    for i in range (1, high):
        if i % 3 == 0:
            sum += i
        elif i % 5 == 0:
            sum += i
    return sum

class TestProblem1(unittest.TestCase):
    def test_example(self):
        self.assertTrue(multiple3_5(10),23)

    def test_answer(self):
        print("Answer: "+str(multiple3_5(1000)))

if __name__ == '__main__':
    unittest.main()