#include <bits/stdc++.h>
using namespace std;
using ll=long long;
int main(){
    ll N,M,K,ans=0;
    cin>>N>>M>>K;
    vector<ll> A(N);
    for(auto &a:A) cin>>a;
    auto f=[&](auto self,ll v,int c,int ind)->void{
        if(M<v) return;
        if(ind==N||c==K){
            ans=max(ans,v);
            return;
        }
        for(ll i=0;i<=K-c;i++){
            self(self,v+i*A[ind],c+i,ind+1);
        }
    };
    f(f,0,0,0);
    cout<<ans<<"\n";
}