#include <cstdio>
#include <algorithm>
using namespace std;

const int N = 502;

int a[N], b[N];

void solve()
{
    int n, m;
    scanf("%d%d", &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 sum_a=0, sum_b=0;
    for (int i=0; i<m; ++i) {
        sum_a += a[i];
        sum_b += b[n-1-i];
    }
    if (sum_a > sum_b) {
        printf("YES\n");
    } else {
        printf("NO\n");
    }
}

int main()
{
    int n;
    scanf("%d", &n);
    for (int i=0; i<n; ++i) {
        solve();
    }
    return 0;
}