C131121333133313233213331333133313331333133313331333133313121111331322131211   >>    C13112133313331323321333133313331333133313331333133313331312111133132213121   <<    C131121333133313233213331333133313331333133313331333133313121111331322131213   >>      C131121333133313233213331333133313331333133313331333133313121111331322131212   >>