class FullCrewException(Exception): pass

class NoTargetsAvailable(Exception): pass

class NotEnoughSpeed(Exception): pass

class NotEnoughSpacePowerMass(Exception): pass

class ArenaCoordinateOccupied(Exception): pass

class OutOfAmmo(Exception): pass

class NoGunners(Exception): pass

class InvalidJSON(Exception): pass

class FullCrewException(Exception): pass

class NoTargetsAvailable(Exception): pass

class NotEnoughSpeed(Exception): pass

class NotEnoughSpacePowerMass(Exception): pass

class ArenaCoordinateOccupied(Exception): pass

class OutOfAmmo(Exception): pass

class NoGunners(Exception): pass

class InvalidJSON(Exception): pass
