C11111211113313112113313331333133313331333132233131133133313331323132232311   >>    C1111121111331311211331333133313331333133313223313113313331333132313223231   <<    C11111211113313112113313331333133313331333132233131133133313331323132232313   >>      C11111211113313112113313331333133313331333132233131133133313331323132232312   >>