C1111133313331323223313331333133313331333231333121111331323123331   >>    C111113331333132322331333133313331333133323133312111133132312333   <<    C1111133313331323223313331333133313331333231333121111331323123333   >>      C1111133313331323223313331333133313331333231333121111331323123332   >>