C111113331333132322331333133313331333133313121111331333132231121   >>    C11111333133313232233133313331333133313331312111133133313223112   <<    C111113331333132322331333133313331333133313121111331333132231123   >>      C111113331333132322331333133313331333133313121111331333132231122   >>