text: import sys
  input = sys.stdin.readline
  sys.setrecursionlimit(10 ** 7)
  
  n = int(input())
  
  s = []
  for _ in range(n):
      s.append(int(input()))
  s = sorted(s)
  
  ans = sum(s)
  if ans % 10 != 0:
      print(ans)
      sys.exit(0)
  
  for v in s:
      if v % 10 != 0:
          print(ans - v)
          sys.exit(0)
  print(0)
  