package backjoon;

// https://www.acmicpc.net/problem/2798

// 블랙잭

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.StringTokenizer;

public class _2798 {

public static void main(String[] args) throws IOException {

// memory 11592 runtime 96

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

StringTokenizer st = new StringTokenizer(br.readLine(), " ");

int N = Integer.parseInt(st.nextToken());

int M = Integer.parseInt(st.nextToken());

st = new StringTokenizer(br.readLine(), " ");

int[] arr = new int[N];

for(int i=0; i<arr.length; i++){

arr[i] = Integer.parseInt(st.nextToken());

}

int sum = findSum(arr, N, M);

System.out.println(sum);

}

static int findSum(int[] arr, int N, int M){

int sum = 0;

for(int i=0; i<N-2; i++){

for(int j=i+1; j<N-1; j++){

for(int k=j+1; k<N; k++){

int tempSum = arr[i]+arr[j]+arr[k];

if(tempSum == M){

return tempSum;

}

// 세 카드의 합 sum이 이전 합 tempSum보다 크면서 M 보다 작을 경우

if(sum < tempSum && tempSum < M) {

sum = tempSum;

}

}

}

}

return sum;

}

}

/*

INPUT

5 21

5 6 7 8 9

5 9

1 2 4 3 5

OUTPUT

21

*/