from collections import OrderedDict

n = int(input())
count = 0
inp_dict = OrderedDict()

for i in range(n):
    word = str(input())
    
    if word in inp_dict:
       inp_dict[word] += 1
    else:
        inp_dict[word] = 1
        count +=1
        
print(count)
print(*(inp_dict[word] for word in inp_dict))