B331133131323131133132233133313232212111112111113331323132322121   >>    B33113313132313113313223313331323221211111211111333132313232212   <<    B331133131323131133132233133313232212111112111113331323132322123   >>      B331133131323131133132233133313232212111112111113331323132322122   >>