import sys

in(buffer []Int8) -> Int {
	return sys.read(0, buffer, len(buffer))
}

out(buffer []Int8) -> Int {
	return sys.write(1, buffer, len(buffer))
}

error(buffer []Int8) -> Int {
	return sys.write(2, buffer, len(buffer))
}

read(fd Int, buffer []Int8) -> Int {
	return sys.read(fd, buffer, len(buffer))
}

write(fd Int, buffer []Int8) -> Int {
	return sys.write(fd, buffer, len(buffer))
}