C11112331312111112111133133313331333132322321111331323133313113111   >>    C1111233131211111211113313331333133313232232111133132313331311311   <<    C11112331312111112111133133313331333132322321111331323133313113113   >>      C11112331312111112111133133313331333132322321111331323133313113112   >>