#include "bits/stdc++.h"
#define sz(x) (int)size(x)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const char nl = '\n';
const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3f;
void chmin(int &a, int b) { if (b < a) a = b; }
int32_t main() {
ios::sync_with_stdio(0), cin.tie(0);
int n, a, b; cin >> n >> a >> b;
vector<int> y(n); for (auto &x : y) cin >> x;
vector<int> p(n); p[0] = y[0];
for (int i = 1; i < n; i++)
p[i] = p[i - 1] + y[i];
int c = *max_element(all(y)) * n;
vector dp(n, vector<int>(c + 1, INF));
for (int i = 0; i < n; i++)
dp[i][p[i]] = 1;
for (int i = 0; i < n; i++)
for (int v = 0; v <= c; v++)
for (int j = i + 1; j < n; j++)
chmin(dp[j][v | (p[j] - p[i])], dp[i][v] + 1);
int ans = INF;
for (int v = 0; v <= c; v++)
if (dp[n - 1][v] <= b)
ans = min(ans, v);
cout << ans << nl;
return 0;
}
