/**
 * code generated by JHelper
 * More info: https://github.com/AlexeyDmitriev/JHelper
 * @author
 */

#include <iostream>
#include <fstream>

#ifndef SOLUTION_COMMON_H

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using PI = pair<int, int>;
template<class T> using V = vector<T>;
using VI = V<int>;
#define _1 first
#define _2 second

#ifdef MY_DEBUG
# define DEBUG(x) x
#else
# define DEBUG(x)
#endif

template<class T>
inline void debug(T &A) {
  DEBUG(
      for (const auto &a : A) {
        cerr << a << " ";
      }
      cerr << '\n';
  )
}

template<class T, class Func>
inline void debug_with_format(T &A, Func f) {
  DEBUG(
      for (const auto &a : A) {
        cerr << f(a) << " ";
      }
      cerr << '\n';
  )
}

template<class T>
inline void debug_dim2(T &A) {
  DEBUG(
      for (const auto &as : A) {
        debug(as);
      }
  )
}

template<typename ... Args>
inline void debug(const char *format, Args const &... args) {
  DEBUG(
      fprintf(stderr, format, args ...);
      cerr << '\n';
  )
}

template<typename ... Args>
string format(const string &fmt, Args ... args) {
  size_t len = snprintf(nullptr, 0, fmt.c_str(), args ...);
  vector<char> buf(len + 1);
  snprintf(&buf[0], len + 1, fmt.c_str(), args ...);
  return string(&buf[0], &buf[0] + len);
}

template<class T1, class T2>
string fmtP(pair<T1, T2> a) {
  stringstream ss;
  ss << "(" << a._1 << "," << a._2 << ")";
  return ss.str();
}

#define SOLUTION_COMMON_H

#endif //SOLUTION_COMMON_H

const int MOD = 1000000007;

class D {
public:

  ll calc(VI &bit, ll l, ll r) {
    V<V<V<ll>>> memo(60, V<V<ll>>(2, V<ll>(2, -1)));
    function<ll(int, int, int)> dfs = [&](int k, int more, int less) {
      if (k == -1) return 1ll;
      if (memo[k][more][less] != -1) return memo[k][more][less];

      ll res = 0ll;
      for (int i = 0; i < 2; ++i) {
        if (!(bit[k] == i || bit[k] == 2)) continue;
        if (i == 0 && !more && (l >> k & 1)) continue;
        if (i == 1 && !less && !(r >> k & 1)) continue;
        int nmore = more || !(l >> k & 1) && i == 1;
        int nless = less || (r >> k & 1) && i == 0;
        res += dfs(k - 1, nmore, nless);
      }
      memo[k][more][less] = res;
      return res;
    };

    return dfs(59, 0, 0);
  }

  void solve(std::istream& in, std::ostream& out) {
    int n;
    ll l, r;
    in >> n >> l >> r;
    V<ll> a(n);
    for (int i = 0; i < n; ++i) {
      in >> a[i];
    }

    VI g(n);
    int id = 1;

    auto mergeTpe = [](int t1, int t2) {
      if (t1 == 2 && t2 == 1 || t1 == 1 && t2 == 2) return -1;
      if (t1 == 0 || t1 == 1) return t2;
      return t1;
    };

    VI bit(60);
    for (int k = 59; k >= 0; --k) {
      int tpe = 0; // 0: 0000, 1: 1111, 2: 0011, 3: 1100
      int cur = 0;
      int curG = 0;
      for (int i = 0; i < n; ++i) {
        // グループが変わった
        if (i == 0 || curG != g[i]) {
          tpe = mergeTpe(tpe, cur);
          if (tpe == -1) {
            out << 0;
            return;
          }
          cur = (a[i] >> k & 1) == 1 ? 1 : 0;
          curG = g[i];
          continue;
        }

        if (cur == 0 && (a[i] >> k & 1) == 1) {
          debug("enter(2) %d %d", k, i);
          cur = 2;
          g[i] = id++;
          continue;
        }
        if (cur == 1 && (a[i] >> k & 1) == 0) {
          debug("enter(3) %d %d", k, i);
          cur = 3;
          g[i] = id++;
          continue;
        }
        if (cur == 2 && (a[i] >> k & 1) == 0) {
          out << 0;
          return;
        }
        if (cur == 3 && (a[i] >> k & 1) == 1) {
          out << 0;
          return;
        }
        if (cur == 2 || cur == 3) {
          g[i] = g[i - 1];
        }
      }
      tpe = mergeTpe(tpe, cur);
      if (tpe == -1) {
        out << 0;
        return;
      }

      if (tpe == 0 || tpe == 1) {
        bit[k] = 2;
      } else if (tpe == 2) {
        bit[k] = 0;
      } else {
        bit[k] = 1;
      }

      debug(g);
    }
    debug(bit);

    out << calc(bit, l, r);
  }
};


int main() {
	D solver;
	std::istream& in(std::cin);
	std::ostream& out(std::cout);
	solver.solve(in, out);
	return 0;
}