import scala.io.StdIn.readLine
import scala.util.control.Breaks

object Main{
  def ipow(x : Long,n : Long) : Long = {
    if(x == 0)
      1
    else if(n % 2 == 0)
      ipow(x*x,n/2)
    else
      x * ipow(x*x,n/2)
  }

  def popcount(x : Long) : Long = {
    var ret = 0
    var xi = x
    while(xi != 0){
      xi = xi & (xi-1)
      ret = ret + 1
    }
    ret
  }

  def to_bit_str(x : Long) : String = {
    val bi = (0 to 62).map((i : Int) => if ((x & (1L << i)) != 0) "1" else "0" ).reverse
    bi.map(_.toString).fold("")(_ + _)
  }

  def main(args: Array[String]){
    val n = readLine().toLong
    val a = readLine().split(" ").map(_.toLong).sorted.distinct.reverse
    val MAXK = 62
    var i = 0
    var used = Set[Int]()
    for(k <- 0 to MAXK){
      val mask = 1L << (MAXK-k)
      val b = new Breaks
      b.breakable {
        for((e,i) <- a.zipWithIndex){
          if(!used(i) && (e & mask) != 0){
            used = used + i
            for((c,h) <- a.zipWithIndex){
              if(!used(h) && ((c & mask) != 0)){
                a(h) = a(h) ^ e
              }
            }
            // println("---------------------------------")
            // a.map(to_bit_str).foreach(println)
            // println("---------------------------------")
            b.break
          }
        }
      }
    }
    // println("---------------------------------")
    // a.map(to_bit_str).foreach(println)
    // println("---------------------------------")
    println(ipow(2,a.distinct.count(_ != 0)))
  }
}