C222133313331333131123313231333133313331333131123313221333222321   >>    C22213331333133313112331323133313331333133313112331322133322232   <<    C222133313331333131123313231333133313331333131123313221333222323   >>      C222133313331333131123313231333133313331333131123313221333222322   >>