#include <bits/stdc++.h>
using namespace std;
int P[400001][9];int vl[10];
int xd = 9;
int main(){
ios_base::sync_with_stdio(false);cin.tie(0);
vl[0] = 1;
for(int i = 1;i<xd;i++){
vl[i] = 3*vl[i-1];
}
int n,l,r,ans;
cin>>n;
long long arr[n];
map<long long,int> mp;
long long sum = 0;
mp[0] = 1;
for(int i = 0;i<n;i++){
cin>>arr[i];
sum+=arr[i];
if(mp[sum]>0){
P[mp[sum]-1][0] = i+1;
}
mp[sum] = i+2;
}
for(int i = 0;i<=n;i++){
if(P[i][0]==0)P[i][0] = n;
else P[i][0]--;
}
for(int i = n;i>=0;i--){
if(i<n)P[i][0] = min(P[i][0],P[i+1][0]);
for(int j = 1;j<xd;j++){
P[i][j] = P[min(n,P[min(n,P[i][j-1]+1)][j-1])][j-1];
}
}
int q;cin>>q;
while(q--){
cin>>l>>r;l--;r--;
ans = 0;
int e = xd-1;
while(e>=0){
while(P[l][e]<=r){
l = P[l][e]+1;
ans+=vl[e];
}
e--;
}
cout<<ans<<endl;
}
return 0;
}
