import io
import struct


class Packet(io.BytesIO):
    def putByte(self, val):
        self.write(struct.pack('<B', val % 256))

    def getByte(self):
        return struct.unpack('<B', self.read(1))[0]

    def putBytes(self, bytes):
        for byte in bytes:
            self.write(struct.pack('<B', byte))

    def getBytes(self, num):
        return bytes(struct.unpack('<'+str(num)+'B', self.read(num)))

    def putShort(self, val):
        self.write(struct.pack('<H', val))

    def getShort(self):
        return struct.unpack('<H', self.read(2))[0]

    def putLong(self, val):
        self.write(struct.pack('<l', val))

    def putULong(self, val):
        self.write(struct.pack('<L', val))

    def getLong(self):
        return struct.unpack('<l', self.read(4))[0]

    def getULong(self):
        return struct.unpack('<L', self.read(4))[0]

    def putLongLong(self, val):
        self.write(struct.pack('<Q', val))

    def getLongLong(self):
        return struct.unpack('<Q', self.read(8))[0]

    def putFloat(self, val):
        self.write(struct.pack('<f', val))

    def getFloat(self):
        return struct.unpack('<f', self.read(4))[0]

    def putString(self, val):
        self.write(val + '\x00')