import numpy as np
import math
from math import *
import collections
from collections import *
import heapq
import itertools
import random
import sys
import unittest


# TOFILL


class CLASS_27c05c7602b81c3bcf7ac99abf940ebc4c909da67935bb59bc30e51ac3933ace(
    unittest.TestCase
):
    def test1(self):
        string0 = f_filled("", "")
        assert string0 is None


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