#include<bits/stdc++.h>
#define rep(i,n) for(int i=0;i<n;i++)
#define V vector
#define VI vector<int>
#define VVI vector<vector<int>>

using namespace std;

int main(void){
    int N,Q;
    cin>>N;
    VI A(N),S(N-23);
    rep(i,N)cin>>A[i];
    rep(i,24)S[0]+=A[i];
    for(int i=1;i<N-23;i++){
        S[i]=S[i-1]+A[i+23]-A[i-1];
    }
   
    cin>>Q;
    VI T(Q),V(Q),ans(Q);
    rep(i,Q){
        cin>>T[i]>>V[i];
        int s=max(0,T[i]-24);
        int e;
        if(s==0)e=T[i]+1;
        else e=s+23;
        for(int j=s;j<e;j++){
            S[j]+=V[i]-A[i];
        }
        sort(S.begin(),S.end());
        ans[i]=S[N-24];
    }
    rep(i,Q)cout<<ans[i]<<endl;
    //rep(i,N-23)cout<<S[i]<<endl;
    
}