C11111211113313112113313331333133313331322333133313112113121213331   >>    C1111121111331311211331333133313331333132233313331311211312121333   <<    C11111211113313112113313331333133313331322333133313112113121213333   >>      C11111211113313112113313331333133313331322333133313112113121213332   >>