C222133313331333131123313231333133313331311111211113313331312213232211   >>    C22213331333133313112331323133313331333131111121111331333131221323221   <<    C222133313331333131123313231333133313331311111211113313331312213232213   >>      C222133313331333131123313231333133313331311111211113313331312213232212   >>