guest_list=['Niuniu','Niu Ke Le']
for i in guest_list:
    print("%s, do you want to come to my celebration party?"%(i))
guest_list.insert(0,'GURR')
guest_list.insert(2,'Niumei')
guest_list.append("LOLO")
print()
for j in guest_list:
    print("%s, thank you for coming to my celebration party!"%(j))