C1111233131211111211113313331333133313331333133313331333133313332213221211   >>    C111123313121111121111331333133313331333133313331333133313331333221322121   <<    C1111233131211111211113313331333133313331333133313331333133313332213221213   >>      C1111233131211111211113313331333133313331333133313331333133313332213221212   >>