def test_return_1(a: i32) -> i32:
    x: i32
    x = 5
    return x


def test_return_2(a: i32) -> str:
    x: str
    x = 'test'
    return x


def test_return_3(a: i32) -> i32:
    a = 3
    return a


def test_return_4(a: i32):
    a = 1
    return

def main0():
    i: i32
    i = test_return_1(4)
    s: str
    s = test_return_2(4)
    i = test_return_3(4)
    test_return_4(4)

main0()