/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		int[] a = {2,3,1,4};
		int t1 = 1;
		int t2 = 5;
		int n = a.length;
		int[][] dp = new int[n+1][6];
 
		for(int i = 0; i < n; i++){
			int j = i, xor1 = 0;
			while(j >= 0){
				xor1 ^= a[j];
				if(xor1 == t1){
					if(j == 0){
					dp[i][t1] ++;	
					}else{
					dp[i][t1] += dp[j-1][t2];
					}
				}
				if(xor1 == t2){
					if(j > 0)
					dp[i][t2] += dp[j-1][t1]; 
				}
				j--;
			}
		}
 
		System.out.print(dp[n-1][t1] + dp[n-1][t2]);
	}
}

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