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不管行列   总是先切割切割费用大的  代码比较烂 ......

#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>

using namespace std;
bool cmp(int a, int b)
{
    return a > b;
}
int a[1010],b[1010];
int main()
{
    int T;
    scanf("%d",&T);
    while(T--)
    {
        int m,n;
        scanf("%d%d",&m,&n);
        for(int i = 0; i < m-1; i++)
        {
            scanf("%d",&a[i]);
        }
        for(int i = 0; i < n-1; i++)
        {
            scanf("%d",&b[i]);
        }
        sort(a, a+m-1, cmp);
        sort(b, b+n-1, cmp);
        int sum = 0;
        int p,q;
        p = q = 0;
        while(p != m-1 || q != n-1)
        {
            if(p != m-1 && q != n-1 && a[p] >= b[q])
            {
                sum += a[p];
                for(int j = q; j < n-1; j++)
                {
                    sum += b[j];
                }
                p++;
            }
            else if(p != m-1 && q != n-1 && a[p] < b[q])
            {
                sum += b[q];
                for(int j = p; j < m-1; j++)
                {
                    sum += a[j];
                }
                q++;
            }
            else if(p == m-1)
            {
                for(int j = q; j < n-1; j++)
                {
                    sum += b[j];
                }
                q = n-1;
            }
            else
            {
                for(int j = p; j < m-1; j++)
                {
                    sum += a[j];
                }
                p = m-1;
            }
        }
        printf("%d\n",sum);
    }
    return 0;
}