D13231123313133313133112323223313231323223313331313231333131133132231   >>    D1323112331313331313311232322331323132322331333131323133313113313223   <<    D13231123313133313133112323223313231323223313331313231333131133132233   >>      D13231123313133313133112323223313231323223313331313231333131133132232   >>