#yuki286

N=int(raw_input())
M=[]
for i in xrange(N):
 M.append(int(raw_input()))
dp=[1<<20 for i in xrange(1<<N+1)]
dp[0]=0
for m in xrange((1<<N)-1):
 t=0
 for i in xrange(N):
  if m & (1<<i):
   t+=M[i]
 t%=1000
 for i in xrange(N):
  if m & (1<<i)==0:
   dp[m | (1<<i)]=min(dp[m | (1<<i)],dp[m]+max(0,M[i]-t))
print dp[(1<<N)-1]