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#include<cstdio>
const int N=1000;
int v[N+1];
int n;
int main(){
freopen("xormax.in","r",stdin);
freopen("xormax.out","w",stdout);
scanf("%d",&n);
for(int i=1;i<=n;i++)
scanf("%d",&v[i]);
int maxx=-1,l,r;
for(int i=1;i<=n;i++){
int x=0;
for(int j=i;j<=n;j++){
x^=v[j];
if(x==maxx)
if(j-i<r-l){
i=l;
r=j;
}
if(x>maxx){
maxx=x;
l=i;
r=j;
}
}
}
printf("%d %d %d",maxx,l,r);
return 0;
}