#pragma warning(disable:4996)
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
const int maxn = 300005;
int a[505], b[505];

int main() {
    int t,n,m;
    cin >> t;
    while (t--) {
        cin >> n >> m;
        for (int i = 0;i < n;i++) scanf("%d", &a[i]);
        for (int i = 0;i < n;i++) scanf("%d", &b[i]);
        sort(a, a + n);
        sort(b, b + n);
        int ret = 0;
        for (int i = 0;i < m;i++)
            ret += a[i];
        for (int j = n-1;j >=n-m;j--)
            ret -= b[j];
        if (ret > 0) cout << "YES" << endl;
        else cout << "NO" << endl;
    }
    return 0;
}