C33331211113313331211113313331333133313223313311211111133221233132212321   >>    C3333121111331333121111331333133313331322331331121111113322123313221232   <<    C33331211113313331211113313331333133313223313311211111133221233132212323   >>      C33331211113313331211113313331333133313223313311211111133221233132212322   >>