C33331211113313331211113313331333133313223313311211113313221232211   >>    C3333121111331333121111331333133313331322331331121111331322123221   <<    C33331211113313331211113313331333133313223313311211113313221232213   >>      C33331211113313331211113313331333133313223313311211113313221232212   >>