D13231123313133313133112323223313233313231322132313331323132333132323231   >>    D1323112331313331313311232322331323331323132213231333132313233313232323   <<    D13231123313133313133112323223313233313231322132313331323132333132323233   >>      D13231123313133313133112323223313233313231322132313331323132333132323232   >>