tr '\n' ' ' | gawk '{
    n = $1
    k = $2
    ans = 0
    for (mask = 0; mask < lshift(1, n); mask++) {
        tmp = 0
        for (i = 0; i < n; i++) {
            if (and(mask, lshift(1, i))) {
                tmp = tmp + $(i+3)
            }
        }
        if (tmp <= k && tmp > ans) {
            ans = tmp
        }
    }
    print(ans)
}'