#include <iostream>
#include <stdio.h>
#include <cstdio>
#include <stdlib.h>
#include <string.h>
#include <vector>
#include <vector>
#include <algorithm>
#include <sstream>
#include <math.h>
#include <set>
#include <map>
#include <iomanip>
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define ll long long
#define ull unsigned long long
#define PI 3.14159265359
#define INF 400000.0
#define pll pair<long, long>

using namespace std;

ll a[100500],ans=0;
ll n,k;

void bs(ll l,ll r){
    while(l<=r){
        ll m=(l+r)/2;
        bool ok=false;
        ll need=0;
        for(int i=0;i<n;i++){
            if(a[i]<m) need+=m-a[i];
        }
        if(need<=k) ok=true;
        if(!ok){
            r=m-1;
        } else{
            ans=max(ans,m);
            l=m+1;
        }
    }
}

int main()
{
    freopen("repair.in", "r", stdin);
    freopen("repair.out", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin>>n>>k;
    for(int i=0;i<n;i++){
        cin>>a[i];
    }
    bs(0,1000000000*(ll)100500);
    cout<<ans;
    return 0;
}