Koxia and Whiteboards
Description
Kiyora has $n$ whiteboards numbered from $1$ to $n$. Initially, the $i$-th whiteboard has the integer $a_i$ written on it.
Koxia performs $m$ operations. The $j$-th operation is to choose one of the whiteboards and change the integer written on it to $b_j$.
Find the maximum possible sum of integers written on the whiteboards after performing all $m$ operations.
Each test consists of multiple test cases. The first line contains a single integer $t$ ($1 \leq t \leq 1000$) — the number of test cases. The description of test cases follows.
The first line of each test case contains two integers $n$ and $m$ ($1 \le n,m \le 100$).
The second line of each test case contains $n$ integers $a_1, a_2, \ldots, a_n$ ($1 \le a_i \le 10^9$).
The third line of each test case contains $m$ integers $b_1, b_2, \ldots, b_m$ ($1 \le b_i \le 10^9$).
For each test case, output a single integer — the maximum possible sum of integers written on whiteboards after performing all $m$ operations.
Input
Each test consists of multiple test cases. The first line contains a single integer $t$ ($1 \leq t \leq 1000$) — the number of test cases. The description of test cases follows.
The first line of each test case contains two integers $n$ and $m$ ($1 \le n,m \le 100$).
The second line of each test case contains $n$ integers $a_1, a_2, \ldots, a_n$ ($1 \le a_i \le 10^9$).
The third line of each test case contains $m$ integers $b_1, b_2, \ldots, b_m$ ($1 \le b_i \le 10^9$).
Output
For each test case, output a single integer — the maximum possible sum of integers written on whiteboards after performing all $m$ operations.
4
3 2
1 2 3
4 5
2 3
1 2
3 4 5
1 1
100
1
5 3
1 1 1 1 1
1000000000 1000000000 1000000000
12
9
1
3000000002
Note
In the first test case, Koxia can perform the operations as follows:
- Choose the $1$-st whiteboard and rewrite the integer written on it to $b_1=4$.
- Choose the $2$-nd whiteboard and rewrite to $b_2=5$.
After performing all operations, the numbers on the three whiteboards are $4$, $5$ and $3$ respectively, and their sum is $12$. It can be proven that this is the maximum possible sum achievable.
In the second test case, Koxia can perform the operations as follows:
- Choose the $2$-nd whiteboard and rewrite to $b_1=3$.
- Choose the $1$-st whiteboard and rewrite to $b_2=4$.
- Choose the $2$-nd whiteboard and rewrite to $b_3=5$.
The sum is $4 + 5 = 9$. It can be proven that this is the maximum possible sum achievable.