python 取整itertools

 #coding:utf-8
 import sys
 import itertools

 def MaxString(n,nums):

     list1 = nums
     list2 = []
     for i in range(1, len(list1) + 1):
         iter = itertools.combinations(list1, i)
         m=list(iter)
         k=len(m)
         for j in range(k):
             if sum(m[j])%n==0:
                 list2.append(m[j])
     print(list2)
     k=len(list2[len(list2)-1])
     if k!=0:
         print(k)
     else:
         print(0)
 if __name__=='__main__':
     a=int(input())
     b=[int(i) for i in sys.stdin.readline().split(' ')]
     MaxString(a,b)