B331133131323131133132233133313223313113313223313331323133313233313232322121   >>    B33113313132313113313223313331322331311331322331333132313331323331323232212   <<    B331133131323131133132233133313223313113313223313331323133313233313232322123   >>      B331133131323131133132233133313223313113313223313331323133313233313232322122   >>