C11111211113313112113313331333133313331333121111121111331322331333231   >>    C1111121111331311211331333133313331333133312111112111133132233133323   <<    C11111211113313112113313331333133313331333121111121111331322331333233   >>      C11111211113313112113313331333133313331333121111121111331322331333232   >>