C11111211113313112113313331333133313331333132313331333133313331322323111   >>    C1111121111331311211331333133313331333133313231333133313331333132232311   <<    C11111211113313112113313331333133313331333132313331333133313331322323113   >>      C11111211113313112113313331333133313331333132313331333133313331322323112   >>