C222133313331333131123313231333133313331333133313331333133313121111112113122211   >>    C22213331333133313112331323133313331333133313331333133313331312111111211312221   <<    C222133313331333131123313231333133313331333133313331333133313121111112113122213   >>      C222133313331333131123313231333133313331333133313331333133313121111112113122212   >>