D2122132313112331313133313223313113313132322331323221212111112111   >>    D212213231311233131313331322331311331313232233132322121211111211   <<    D2122132313112331313133313223313113313132322331323221212111112113   >>      D2122132313112331313133313223313113313132322331323221212111112112   >>