D13231123313133313133112323223313231323223313331313231333132233131322131   >>    D1323112331313331313311232322331323132322331333131323133313223313132213   <<    D13231123313133313133112323223313231323223313331313231333132233131322133   >>      D13231123313133313133112323223313231323223313331313231333132233131322132   >>