package main

import (
	"bufio"
	"fmt"
	"io"
	"math/bits"
	"os"
	"strconv"
)

var iost *Iost

type Iost struct {
	Scanner *bufio.Scanner
	Writer  *bufio.Writer
}

func NewIost(fp io.Reader, wfp io.Writer) *Iost {
	const BufSize = 2000005
	scanner := bufio.NewScanner(fp)
	scanner.Split(bufio.ScanWords)
	scanner.Buffer(make([]byte, BufSize), BufSize)
	return &Iost{Scanner: scanner, Writer: bufio.NewWriter(wfp)}
}
func (i *Iost) Text() string {
	if !i.Scanner.Scan() {
		panic("scan failed")
	}
	return i.Scanner.Text()
}
func (i *Iost) Atoi(s string) int                 { x, _ := strconv.Atoi(s); return x }
func (i *Iost) GetNextInt() int                   { return i.Atoi(i.Text()) }
func (i *Iost) Atoi64(s string) int64             { x, _ := strconv.ParseInt(s, 10, 64); return x }
func (i *Iost) GetNextInt64() int64               { return i.Atoi64(i.Text()) }
func (i *Iost) Atof64(s string) float64           { x, _ := strconv.ParseFloat(s, 64); return x }
func (i *Iost) GetNextFloat64() float64           { return i.Atof64(i.Text()) }
func (i *Iost) Print(x ...interface{})            { fmt.Fprint(i.Writer, x...) }
func (i *Iost) Printf(s string, x ...interface{}) { fmt.Fprintf(i.Writer, s, x...) }
func (i *Iost) Println(x ...interface{})          { fmt.Fprintln(i.Writer, x...) }
func isLocal() bool                               { return os.Getenv("NICKEL") == "BACK" }
func main() {
	fp := os.Stdin
	wfp := os.Stdout
	if isLocal() {
		fp, _ = os.Open(os.Getenv("WELL_EVERYBODY_LIES_TOO_MUCH"))
	}
	iost = NewIost(fp, wfp)
	defer func() {
		iost.Writer.Flush()
	}()
	solve()
}
func solve() {
	n := iost.GetNextInt()
	l := iost.GetNextInt()
	r := iost.GetNextInt()
	aa := make([]int, n)
	for i := 0; i < n; i++ {
		aa[i] = iost.GetNextInt()
	}
	xx := make([][2]bool, 61)
	for i := 0; i < n-1; i++ {
		for j := 60; j >= 0; j-- {
			if aa[i]>>uint(j)&1 != aa[i+1]>>uint(j)&1 {
				xx[60-j][aa[i+1]>>uint(j)&1] = true
				break
			}
		}
	}
	ans := f(r, aa, xx) - f(l-1, aa, xx)
	if l == 0 {
		ans++
		for i := 0; i < n-1; i++ {
			if aa[i] >= aa[i+1] {
				ans--
				break
			}
		}
	}
	iost.Println(ans)
}
func f(r int, aa []int, xx [][2]bool) int {
	if r <= 0 {
		return 0
	}
	m := bits.Len(uint(r))
	dp := make([][2]int, 62)
	rr := make([]int, 61)
	for i := 0; i < 61; i++ {
		rr[60-i] = r >> uint(i) & 1
	}
	dp[61][0] = 1
	ans := 0
	least := 60
	for i := 0; i < 61; i++ {
		if xx[i][0] {
			least = i
			break
		}
	}
	for i := 60; i > 60-m; i-- {
		for j := 0; j < 2; j++ {
			for k := 0; k < 2; k++ {
				if xx[i][k] {
					continue
				}
				tj := 0
				if rr[i]-j < k {
					tj = 1
				}
				dp[i][tj] += dp[i+1][j]
				if k == 0 {
					continue
				}
				if least < i {
					continue
				}
				if i > 61-m || tj == 0 {
					ans += dp[i+1][j]
				}
			}
		}
	}
	return ans
}