import time
import itertools
import collections
from functools import reduce
from functools import wraps
from collections import defaultdict
# import pdb; pdb.set_trace()
from operator import add

def timefn(fn):
    @wraps(fn)
    def measure_time(*args, **kwargs):
        t1 = time.time()
        res = fn(*args, *kwargs)
        t2 = time.time()
        print('@timefn:' + fn.__name__ + ' took ' + str(t2-t1) + ' seconds.')
        return res
    return measure_time


#def fn(*args, **kwargs):
#@timefn
#@profile
def fn():
    m, n = (int(i) for i in input().split())
    a = [int(input()) for _ in range(n)]
    # m, n, a = 4, 4, [1, 2, 3, 5]
    max_val = 0

    ans_lst = ()
    for i, _ in enumerate(a, 1):
        for perm in itertools.permutations(a, r=i):
            enum = tuple(itertools.chain(perm))
            enum = reduce(lambda x, y: x + y if n >= x + y else 0, enum)
            if enum > max_val and n >= enum: max_val = enum
    print('{0}'.format(max_val))

if __name__ == "__main__": fn()