D2122132313112331313133313223313113313132322331323221122112312111   >>    D212213231311233131313331322331311331313232233132322112211231211   <<    D2122132313112331313133313223313113313132322331323221122112312113   >>      D2122132313112331313133313223313113313132322331323221122112312112   >>