D2122132313112331313133313223313113313132322331313113313232211331   >>    D212213231311233131313331322331311331313232233131311331323221133   <<    D2122132313112331313133313223313113313132322331313113313232211333   >>      D2122132313112331313133313223313113313132322331313113313232211332   >>