C222133313331333131123313231333133313231121133133313113313231333133313222321   >>    C22213331333133313112331323133313331323112113313331311331323133313331322232   <<    C222133313331333131123313231333133313231121133133313113313231333133313222323   >>      C222133313331333131123313231333133313231121133133313113313231333133313222322   >>