C1111133313331323223313331333133313331333131211113313331211113313231333212321   >>    C111113331333132322331333133313331333133313121111331333121111331323133321232   <<    C1111133313331323223313331333133313331333131211113313331211113313231333212323   >>      C1111133313331323223313331333133313331333131211113313331211113313231333212322   >>