#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using PII = pair<ll, ll>;
#define FOR(i, a, n) for (ll i = (ll)a; i < (ll)n; ++i)
#define REP(i, n) FOR(i, 0, n)
#define ALL(x) x.begin(), x.end()
template<typename T> void chmin(T &a, const T &b) { a = min(a, b); }
template<typename T> void chmax(T &a, const T &b) { a = max(a, b); }
struct FastIO {FastIO() { cin.tie(0); ios::sync_with_stdio(0); }}fastiofastio;
#ifdef DEBUG_ 
#include "../program_contest_library/memo/dump.hpp"
#else
#define dump(...)
#endif
const ll INF = 1LL<<60;

int main(void) {
    ll n, l, r;
    cin >> n >> l >> r;
    vector<ll> a(n);
    REP(i, n) cin >> a[i];

    vector<vector<ll>> can(62);
    auto func = [&] {
        vector<ll> p;
        REP(i, 62) {
            ll idx = 0;
            vector<vector<ll>> v(p.size()+1);
            REP(j, n) {
                if(idx<(ll)p.size() && p[idx]==j) idx++;
                v[idx].push_back(!!(a[j]&1LL<<(61-i))); 
            }
            ll sz = 0;
            bool ok0 = true, ok1 = true;
            for(auto vec: v) {
                ll turn = 0;
                REP(j, vec.size()) {
                    if(turn==0 && vec[j]!=vec[0]) turn = 1, p.push_back(sz+j);
                    else if(turn==1 && vec[j]==vec[0]) {
                        cout << 0 << endl;
                        exit(0);
                    }
                }
                if(turn==1) {
                    if(vec[0]==0) ok1 = false;
                    else if(vec[0]==1) ok0 = false;
                } 
                sz += vec.size();
            }
            if(ok0) can[i].push_back(0);
            if(ok1) can[i].push_back(1);
            sort(ALL(p));
        }
    };

    auto solve = [&](ll x) -> ll {
        vector<vector<ll>> dp(63, vector<ll>(2));
        dp[0][0] = 1;
        REP(i, 62) REP(j, 2) {
            ll bit = !!(x&1LL<<(61-i));
            for(auto k: can[i]) {
                if(j==0 && k > bit) continue;
                dp[i+1][j || k < bit] += dp[i][j];
            }
        }
        return dp[62][0] + dp[62][1];
    };

    func();
    dump(can);
    cout << solve(r) - (l==0?0:solve(l-1)) << endl;

    return 0;
}