C11111211113313112113313331333133313221333133313113313331322331333132333131231   >>    C1111121111331311211331333133313331322133313331311331333132233133313233313123   <<    C11111211113313112113313331333133313221333133313113313331322331333132333131233   >>      C11111211113313112113313331333133313221333133313113313331322331333132333131232   >>