#include <bits/stdc++.h>
using namespace std;

int use[61][2];

long long calc(long long M){
    long long dp[2] = {}, nxt[2] = {};
    dp[1] = 1;
    for(int i = 60; i >= 0; i--){
        nxt[0] = nxt[1] = 0;
        nxt[0] += dp[0] * use[i][0];
        nxt[0] += dp[0] * use[i][1];
        if(M & (1LL << i)){
            nxt[0] += dp[1] * use[i][0];
            nxt[1] += dp[1] * use[i][1];
        }else{
            nxt[1] += dp[1] * use[i][0];
        }
        swap(dp, nxt);
    }
    return dp[0] + dp[1];
}

int main(){
    int N;
    long long L, R;
    cin >> N >> L >> R;
    vector<long long> A(N); 
    for(int i = 0; i < N; i++){
        cin >> A[i];
    }
    vector<int> v;
    v.push_back(0);
    v.push_back(N);
    for(int i = 60; i >= 0; i--){
        use[i][0] = use[i][1] = 1;
        vector<int> tmp = v;
        for(int j = 0; j < v.size() - 1; j++){
            int cnt = 0;
            for(int k = v[j] + 1; k < v[j + 1]; k++){
                if(!!(A[k - 1] & (1LL << i)) != !!(A[k] & (1LL << i))){
                    cnt++;
                    tmp.push_back(k);
                }
            }
            // cout << i << ' ' << j << " " << v[j] << ' ' << cnt << endl;
            if(cnt >= 2) use[i][0] = use[i][1] = 0;
            if(cnt == 1) use[i][!(A[v[j]] & (1LL << i))] = 0;
        }
        sort(tmp.begin(), tmp.end());
        v = tmp;
        // cout << use[i][0] << ' ' << use[i][1] << endl;
    }
    long long ans = calc(R);
    if(L != 0) ans -= calc(L - 1);
    cout << ans << endl;
}