D2122132313112331313133313223313113313132322331323222313132313221   >>    D212213231311233131313331322331311331313232233132322231313231322   <<    D2122132313112331313133313223313113313132322331323222313132313223   >>      D2122132313112331313133313223313113313132322331323222313132313222   >>