#include "secret.h"
#include <bits/stdc++.h>
using namespace std;
int qry(int a, int b){
return Secret(a, b);
}
vector <vector<int>> dp;
int n;
void Init(int N, int A[]) {
n = N;
dp.resize(n);
for ( auto &u: dp ) u.resize(n);
auto dnc = [&](auto dnc, int l, int r) -> void{
if ( l > r ) return;
if ( l == r ){
dp[l][l] = A[l];
return;
}
int m = (l + r) / 2;
dp[m][m] = A[m], dp[m + 1][m + 1] = A[m + 1];
for ( int i = m - 1; i >= l; i-- ){
dp[m][i] = qry(dp[m][i + 1], A[i]);
}
for ( int i = m + 2; i <= r; i++ ){
dp[m + 1][i] = qry(dp[m + 1][i - 1], A[i]);
}
dnc(dnc, l, m - 1);
dnc(dnc, m + 1, r);
};
dnc(dnc, 0, n - 1);
}
int Query(int L, int R) {
if ( L == R ) return dp[L][R];
int a = 0, b = n - 1;
while ( true ){
int m = (a + b) / 2;
if ( L <= m && R > m ) return qry(dp[m][L], dp[m + 1][R]);
else if ( R == m ) return dp[m][L];
else if ( L == m + 1 ) return dp[m + 1][R];
else if ( m > R ) b = m - 1;
else a = m;
}
}
