D13231123313133313133112323223313233313231322132313331323331322131   >>    D1323112331313331313311232322331323331323132213231333132333132213   <<    D13231123313133313133112323223313233313231322132313331323331322133   >>      D13231123313133313133112323223313233313231322132313331323331322132   >>