#include <fstream>
std::ifstream in("xormax.in");
std::ofstream out("xormax.out");
int main ()
{
	int a[100002],x[100002],n,i,j,p1,p2,val;
	in>>n;
	in>>a[0];
	x[0]=a[0];
	for(i=1;i<n;i++)
	{
		in>>a[i];
		x[i]=x[i-1]^a[i];
	}
	int max = -9999;
	for(i=0;i<n;i++)
		for(j=i;j<n;j++)
		{
			val=x[j]^x[i];
			if(val>=max)
			{
				max=val;
				p1=i+1;
				p2=j+1;
			}
		}
	out<<max<<" "<<p1+1<<" "<<p2;
	out.close();
	return 0;
}