C111123313121111121111331323133313331333132322121111133313332213231323321   >>    C11112331312111112111133132313331333133313232212111113331333221323132332   <<    C111123313121111121111331323133313331333132322121111133313332213231323323   >>      C111123313121111121111331323133313331333132322121111133313332213231323322   >>