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 PyPy3 (7.3.0) (judge verdict: Time Limit Exceeded)

ii = lambda : int(input())
mi = lambda : map(int,input().split())
li = lambda : list(map(int,input().split()))

n = ii()
a = li()
a.sort()

s = sum(a)

q = ii()

from bisect import bisect_left, bisect_right
def bisect_find(a, x):
    i = bisect_left(a, x)
    if i == len(a):
        return -1
    elif a[i] != x:
        return -1
    return i

def bisect_r_find(a, x):
    i = bisect_right(a, x)
    # if i == len(a):
    #     return -1
    return i

for i in range(q):
    b,c = mi()


    # 左を探す
    l = bisect_find(a,b)
    # 右を探す
    if l != -1:
        r = bisect_r_find(a[l:],b) + l
        # 個数をカウント
        count = r-l
        # 前回の合計との差を求める
        s = s + (c-b)*count

        # 配列を上書き
        a[l:r] = [c]*count
        a.sort()
    # print('-------------ans----------------',s)
    print(s)