题目描述
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.
Examples
Input
4
1 2 3 4
3
1 2
3 4
2 4
Output
11
12
16
Input
4
1 1 1 1
3
1 2
2 1
3 5
Output
8
4
4
Input
2
1 2
3
1 100
2 100
100 1000
Output
102
200
2000
输入格式
见题面
输出格式
见题面
样例输入
2
1 2
3
1 100
2 100
100 1000
样例输出
102
200
2000