D21221323131123313133313112113313311212132313331323232233132213231   >>    D2122132313112331313331311211331331121213231333132323223313221323   <<    D21221323131123313133313112113313311212132313331323232233132213233   >>      D21221323131123313133313112113313311212132313331323232233132213232   >>