import strutils, sequtils, math

var
  A = newSeq[int]()
  best = 0
let
  NK = stdin.readLine.split.map parseInt
  (N, K) = (NK[0], NK[1])

for i in 0 ..< N:
  A.add stdin.readLine.parseInt

for i in 0 ..< (2 ^ N):
  var cnt = 0
  for j, c in i.toBin(N):
    if c == '1':
      cnt += A[j]
      if cnt <= K:
        best = max(cnt, best)
      else:
        break

echo best