This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
/// adil sultanov | vonat1us
#pragma GCC optimize("O3")
//#pragma comment(linker, "/STACK:36777216")
#include<bits/stdc++.h>
#define x first
#define y second
#define pb push_back
#define sz(x) (int) x.size()
#define all(z) (z).begin(), (z).end()
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const int MOD = 1e9 + 7;
const int INF = 1e9 + 1e2;
void fin() {
#ifdef AM
freopen(".in", "r", stdin);
#endif
}
const bool flag = 0;
const int N = 2e3+10;
void ma1n() {
ll n, L, R;
cin >> n >> L >> R;
vector<ll> a(n);
for (ll& x : a) cin >> x;
ll ans = (1ll<<60);
for (int mask = 0; mask < (1<<n); ++mask) {
ll sum = 0, res = 0;
for (int i = 0; i < n; ++i) {
if (mask>>i&1) {
res |= sum;
sum = 0;
}
sum += a[i];
}
res |= sum;
int cnt = __builtin_popcount(mask)+1;
if (L <= cnt && cnt <= R) ans = min(ans, res);
}
cout << ans;
/*
for (int i = 0; i < n; ++i) {
dp[i][1] = (i ? dp[i-1][1] : 0ll) + a[i];
}
for (int k = 2; k <= R; ++k) {
for (int i = 0; i < n; ++i) {
ll sum = 0;
dp[i][k] = (1ll<<50);
for (int j = i; j >= k-1; --j) {
sum += a[j];
dp[i][k] = min(dp[i][k], (dp[j-1][k-1]|sum));
}
}
}
ll ans = (1ll<<50);
for (int k = L; k <= R; ++k) {
ans = min(ans, dp[n-1][k]);
}
cout << ans; */
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(nullptr), fin();
int ts = 1;
if (flag) {
cin >> ts;
}
while (ts--) {
ma1n();
}
return 0;
}
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