from function3 import fun3

def test_fun3():
    assert fun3("input.txt")==6
b1be194ff83116a8ff899ccff2de2d908b7b5037
<mask token>

<mask token>


def test_fun3():
    assert fun3('input.txt') == 6

from function3 import fun3


def test_fun3():
    assert fun3('input.txt') == 6

from function3 import fun3

def test_fun3():
    assert fun3("input.txt")==6