B331133131323131133132233133313233313331323133211331333133313123232212231   >>    B33113313132313113313223313331323331333132313321133133313331312323221223   <<    B331133131323131133132233133313233313331323133211331333133313123232212233   >>      B331133131323131133132233133313233313331323133211331333133313123232212232   >>