C3132121111133313233121111331333133313331333133313331333133313233113313121211   >>    C313212111113331323312111133133313331333133313331333133313331323311331312121   <<    C3132121111133313233121111331333133313331333133313331333133313233113313121213   >>      C3132121111133313233121111331333133313331333133313331333133313233113313121212   >>