D13231123313133313133112323223313231323223313331313231333132222321   >>    D1323112331313331313311232322331323132322331333131323133313222232   <<    D13231123313133313133112323223313231323223313331313231333132222323   >>      D13231123313133313133112323223313231323223313331313231333132222322   >>