import sys

survey_list=['Niumei','Niu Ke Le','GURR','LOLO']
result_dict={
    'Niumei': 'Nowcoder',
    'GURR': 'HUAWEI'
}
for i in survey_list:
    if i in result_dict.keys():
        print('Hi, {}! Thank you for participating in our graduation survey!'.format(i))
    else:
        print('Hi, {}! Could you take part in our graduation survey?'.format(i))