D13231123313133313133112323223313231323223313331313231333131323222231   >>    D1323112331313331313311232322331323132322331333131323133313132322223   <<    D13231123313133313133112323223313231323223313331313231333131323222233   >>      D13231123313133313133112323223313231323223313331313231333131323222232   >>