#include <bits/stdc++.h>
using namespace std;
#pragma region Macros
typedef long long ll;
#define FOR(i,a,b) for (int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(x) (x).begin(),(x).end()
const long long MOD=1e9+7;
// const long long MOD=998244353;
const int INF=1e9;
const long long IINF=1e18;
const int dx[4]={1,0,-1,0},dy[4]={0,1,0,-1};
const char dir[4]={'D','R','U','L'};
#define LOCAL

template<typename T>
istream &operator>>(istream &is,vector<T> &v){
    for (T &x:v) is >> x;
    return is;
}
template<typename T>
ostream &operator<<(ostream &os,const vector<T> &v){
    for (int i=0;i<v.size();++i){
        os << v[i] << (i+1==v.size()?"": " ");
    }
    return os;
}
template<typename T,typename U>
ostream &operator<<(ostream &os,const pair<T,U> &p){
    cout << '(' << p.first << ',' << p.second << ')';
    return os;
}
template<typename T,typename U>
ostream &operator<<(ostream &os,const map<T,U> &m){
    os << '{';
    for (auto itr=m.begin();itr!=m.end();++itr){
        os << '(' << itr->first << ',' << itr->second << ')';
        if (++itr!=m.end()) os << ',';
        --itr;
    }
    os << '}';
    return os;
}
template<typename T>
ostream &operator<<(ostream &os,const set<T> &s){
    os << '{';
    for (auto itr=s.begin();itr!=s.end();++itr){
        os << *itr;
        if (++itr!=s.end()) os << ',';
        --itr;
    }
    os << '}';
    return os;
}

void debug_out(){cerr << '\n';}
template<class Head,class... Tail>
void debug_out(Head&& head,Tail&&... tail){
    cerr << head;
    if (sizeof...(Tail)>0) cerr << ", ";
    debug_out(move(tail)...);
}
#ifdef LOCAL
#define debug(...) cerr << " ";\
cerr << #__VA_ARGS__ << " :[" << __LINE__ << ":" << __FUNCTION__ << "]" << '\n';\
cerr << " ";\
debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif

template<typename T> T gcd(T x,T y){return y!=0?gcd(y,x%y):x;}
template<typename T> T lcm(T x,T y){return x/gcd(x,y)*y;}

template<class T1,class T2> inline bool chmin(T1 &a,T2 b){
    if (a>b){a=b; return true;} return false;
}
template<class T1,class T2> inline bool chmax(T1 &a,T2 b){
    if (a<b){a=b; return true;} return false;
}
#pragma endregion

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    int D; cin >> D;
    vector<int> c(26); cin >> c;
    vector<vector<int>> s(D,vector<int>(26)); cin >> s;
    vector<int> t(D),last(26,-1); cin >> t;
    int now=0;
    vector<set<int>> days(26);
    for (int i=0;i<26;++i){
        days[i].emplace(-1);
        days[i].emplace(D);
    }
    for (int i=0;i<D;++i){
        --t[i];
        now+=s[i][t[i]]; last[t[i]]=i; days[t[i]].emplace(i);
        for (int j=0;j<26;++j) now-=c[j]*(i-last[j]);
    }
    int M,pre,nxt; cin >> M;
    for (;M--;){
        int d,q; cin >> d >> q;
        int old=t[--d];
        auto itr1=days[old].lower_bound(d);
        pre=*(--itr1); ++itr1; nxt=*(++itr1);
        days[old].erase(--itr1);
        now-=c[old]*(d-pre)*(nxt-d);
        now-=s[d][old];
        days[--q].emplace(d); t[d]=q;
        auto itr2=days[q].lower_bound(d);
        pre=*(--itr2); ++itr2; nxt=*(++itr2);
        now+=c[q]*(d-pre)*(nxt-d);
        now+=s[d][q];
        cout << now << '\n';
    }
}

Measured memory_bytes: 3744