C1111133313331323223313331333133313331333231333121111332313233231   >>    C111113331333132322331333133313331333133323133312111133231323323   <<    C1111133313331323223313331333133313331333231333121111332313233233   >>      C1111133313331323223313331333133313331333231333121111332313233232   >>