#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
using namespace std;

int main()
{
    int n, m, init;
    cin >> n >> m >> init;
    ++ n;
    vector<int> a(n);
    for(int i=0; i<n; ++i)
        cin >> a[i];

    vector<vector<long long> > dp(n+1, vector<long long>(m+1, init));
    for(int i=0; i<n; ++i){
        for(int j=i+1; j<n; ++j){
            for(int k=1; k<=m; ++k){
                long long x = dp[i][k] % a[i] + dp[i][k] / a[i] * a[j];
                dp[j+1][k-1] = max(dp[j+1][k-1], x);
            }
        }
        for(int k=0; k<=m; ++k)
            dp[i+1][k] = max(dp[i+1][k], dp[i][k]);
    }
    cout << dp[n][0] << endl;

    return 0;
}