题解 | 统计人次

my_list = input().split()
i = 0
NiuNiu_index =[]
for name in my_list:
    if name == 'NiuNiu':
        i +=1
        NiuNiu_index.append(my_list.index(name))        
print(i)
print(NiuNiu_index[0])