C111123313121111121111331333133313331323112113313113313232233312311   >>    C11112331312111112111133133313331333132311211331311331323223331231   <<    C111123313121111121111331333133313331323112113313113313232233312313   >>      C111123313121111121111331333133313331323112113313113313232233312312   >>