Problem:
Score : 400 points

Problem Statement

You have a sequence A composed of N positive integers: A_{1}, A_{2}, \cdots, A_{N}.

You will now successively do the following Q operations:

In the i-th operation, you replace every element whose value is B_{i} with C_{i}.

For each i (1 \leq i \leq Q), find S_{i}: the sum of all elements in A just after the i-th operation.

Constraints

All values in input are integers.

1 \leq N, Q, A_{i}, B_{i}, C_{i} \leq 10^{5}

B_{i} \neq C_{i}

Input

Input is given from Standard Input in the following format:

N
A_{1} A_{2} \cdots A_{N}
Q
B_{1} C_{1}
B_{2} C_{2}
\vdots
B_{Q} C_{Q}

Output

Print Q integers S_{i} to Standard Output in the following format:

S_{1}
S_{2}
\vdots
S_{Q}

Note that S_{i} may not fit into a 32-bit integer.

Sample Input 1

4
1 2 3 4
3
1 2
3 4
2 4

Sample Output 1

11
12
16

Initially, the sequence A is 1,2,3,4.

After each operation, it becomes the following:

2, 2, 3, 4

2, 2, 4, 4

4, 4, 4, 4

Sample Input 2

4
1 1 1 1
3
1 2
2 1
3 5

Sample Output 2

8
4
4

Note that the sequence A may not contain an element whose value is B_{i}.

Sample Input 3

2
1 2
3
1 100
2 100
100 1000

Sample Output 3

102
200
2000

Solution in C++ (GCC 9.2.1) (judge verdict: Accepted)

//Mandelbrot: z(n+1) = (z(n))^2 + c
//Rick: I programmed you to believe that
//#include <boost/multiprecision/cpp_int.hpp> 
#include "bits/stdc++.h"
#include "ext/pb_ds/assoc_container.hpp"
#include "ext/pb_ds/tree_policy.hpp"
typedef long long int ll;
typedef double db;
// __int128 s128;
// __uint128_t u128;
typedef unsigned long long u64;
#define int long long int
#define PI 3.14159265359
#define sz(a) (ll)a.size()
#define lt(a) (ll)a.length()
#define pll pair<ll,ll>
#define tc(x) ll x; cin>>x; while(x--)
#define f(i,a,b) for(ll i=(ll)a;i<(ll)b;i++)
#define bac(i,a,b) for(ll i=(ll)a;i>=(ll)b;i--)
#define print(a)  for (auto x : a) cout << x << " "; cout << endl
#define mll map<ll,ll>
#define umll unordered_map<ll,ll>
#define vl vector<ll>
#define vvl vector<vector<ll>>
#define mt make_tuple
#define eb emplace_back
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define all(a) a.begin(),a.end()
#define setbits(a) __builtin_popcountll(a)
#define ps(x,y) fixed<<setprecision(y)<<x;
#define F first
#define S second
#define teevra_gati ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define P 998244353
#define Q 1000000006
#define inf 1e18
#define N 1000005
//using namespace boost::multiprecision; 
using namespace __gnu_pbds;
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); //shuffle(all(v), rng);



void solve(){

    ll n, sum=0;
    cin>>n;
    vl a(n);
    mll m;
    f(i,0,n){
        cin>>a[i];
        sum+=a[i];
        m[a[i]]++;
    }
    ll q;
    cin>>q;
    while(q--){
        ll b,c;
        cin>>b>>c;
        ll f = m[b];
        m[c] += f;
        m[b] = 0;
        sum += f*(c-b);
        cout<<sum<<endl;
    }

}

signed main() {
    teevra_gati
        
    solve();
    return 0;
}