package main

import (
	"fmt"
	"strings"
	"strconv"
)

func main() {
	var N int
	fmt.Scan(&N)
	A := make([]int, N)

	for i := 0; i < N; i++ {
		fmt.Scan(&A[i])
	}

	var dp = make([]bool, 1 << 15)

	dp[0] = true
	for i := 0; i < N; i++ {
		var nextDP = make([]bool, 1 << 15)

		for k := 0; k < len(dp); k++ {
			if dp[k] {
				nextDP[k] = true
				nextDP[k ^ A[i]] = true

			}
		}
		dp = nextDP
	}
	var sum = 0
	for k := 0; k < len(dp); k++ {
		if dp[k] {
			sum++
		}
	}

	PrintI(sum)

}

func PrintI(args ...int) {
	fmt.Println(strings.Join(mapToString(args), " "))
}
func mapToString(arr []int) []string {
	ret := make([]string, len(arr))
	for i := 0; i < len(arr); i++ {
		ret[i] = strconv.Itoa(arr[i])
	}
	return ret
}