/*
定数倍が軽いので(1/720)全列挙で通ります。
類題
https://atcoder.jp/contests/typical90/tasks/typical90_bc
*/



#include <bits/stdc++.h>
using namespace std;
using ll=long long;
#define rep(i,a,b) for (ll i=a;i<b;i++)
template<class T> bool chmax(T &a,const T &b){if(a<b){a=b;return 1;}else return 0;}



int main(){
    ll N,M,K;
    cin>>N>>M>>K;
    swap(M,K);
    vector<ll> A(N);
    rep(i,0,N){
        cin>>A[i];
    }
    ll ans=0;
    auto f=[&](auto self,ll v,int c,int ind,int u)->void{
        if(K<v) return;
        if(ind==u||c==M){
            chmax(ans,v);
            return;
        }
        for(ll i=0;i<=M-c;i++){
            self(self,v+i*A[ind],c+i,ind+1,u);
        }
    };
    f(f,0,0,0,N);
    cout<<ans<<"\n";
}