C11111211113313112113313331333133313233313113121111331322331322232311   >>    C1111121111331311211331333133313331323331311312111133132233132223231   <<    C11111211113313112113313331333133313233313113121111331322331322232313   >>      C11111211113313112113313331333133313233313113121111331322331322232312   >>