D13231123313133313133112323223313233313231322132313331323133313232231321   >>    D1323112331313331313311232322331323331323132213231333132313331323223132   <<    D13231123313133313133112323223313233313231322132313331323133313232231323   >>      D13231123313133313133112323223313233313231322132313331323133313232231322   >>