<gh_stars>1-10
def d() -> bool:
    return True


def e() -> bool:
    return False


def n() -> None:
    return


def i() -> int:
    return -1


def s() -> str:
    return ""

def d() -> bool:
    return True


def e() -> bool:
    return False


def n() -> None:
    return


def i() -> int:
    return -1


def s() -> str:
    return ""