B331133131323131133132233133313232212111112111133131133131322321   >>    B33113313132313113313223313331323221211111211113313113313132232   <<    B331133131323131133132233133313232212111112111133131133131322323   >>      B331133131323131133132233133313232212111112111133131133131322322   >>