D13231123313133313133112323223313233313231322132313331313232233131   >>    D1323112331313331313311232322331323331323132213231333131323223313   <<    D13231123313133313133112323223313233313231322132313331313232233133   >>      D13231123313133313133112323223313233313231322132313331313232233132   >>