#include "secret.h"
#include<bits/stdc++.h>
using namespace std;
const int MAXN = 1010;
int tot, maxa;
int qual[MAXN][15];
int a[MAXN];
int n;
void recur(int l, int r, int altura){
if(l >= r || l == r-1) return;
int mid = (l + r)/2;
qual[mid][altura] = a[mid];
qual[mid+1][altura] = a[mid+1];
for(int i = mid - 1; i >= l; i--)qual[i][altura] = Secret(a[i], qual[i+1][altura]);
for(int i = mid + 2; i <= r; i++)qual[i][altura] = Secret(a[i], qual[i-1][altura]);
recur(l, mid-1, altura + 1);
recur(mid + 1, r, altura + 1);
}
int makeans(int x, int y, int L, int R, int altura){
int mid = (x+y)/2;
if(R < mid) return makeans(x, mid - 1, L, R, altura + 1);
if(L > mid) return(makeans(mid + 1, y, L, R, altura));
return Secret(qual[L][altura], qual[R][altura]);
}
void Init(int N, int A[]) {
n = N;
for(int i = 1; i <= N; i++) a[i] = A[i-1];
recur(1, n, 0);
//printf("%d %d\n", tot, maxa);
}
int Query(int L, int R) {
L++;
R++;
if(L==R) return a[L];
if( L == R-1) return Secret(a[L], a[R]);
return makeans(1,n,L,R,0);
return 0;
}
