# -*- coding: utf-8 -*-
"""
No.617 Nafmo、買い出しに行く
https://yukicoder.me/problems/no/617

"""
import sys
from sys import stdin
from itertools import compress
from bisect import bisect_right
input = stdin.readline


def main(args):
    N, K = map(int, input().split())
    items = []
    for i in range(N):
        items.append(int(input()))

    itemsA = items[:10]
    itemsB = items[10:]

    totalA = []
    for i in range(2**len(itemsA)):
        mask = [int(x) for x in list(bin(i)[2:].zfill(len(itemsA)))]
        res = compress(itemsA, mask)
        totalA.append(sum(res))

    totalB = []
    for i in range(2**len(itemsB)):
        mask = [int(x) for x in list(bin(i)[2:].zfill(len(itemsB)))]
        res = compress(itemsB, mask)
        totalB.append(sum(res))

    grand_total = []
    for a in totalA:
        for b in totalB:
            grand_total.append(a+b)
    grand_total.sort()

    i = bisect_right(grand_total, K)
    print(grand_total[i-1])


if __name__ == '__main__':
    main(sys.argv[1:])