Untitled

#include <bits/stdc++.h>
using namespace std;

void solve(){
    int n;
    int res=INT_MIN;
    cin>>n;
    vector<int>arr,dep;
    for(int i=0;i<n;i++){
        int x;
        cin>>x;
        arr.push_back(x);
    }
    for(int i=0;i<n;i++){
        int x;
        cin>>x;
        dep.push_back(x);
    }
    //END OF INPUT
    
    int i=0,j=0;
    sort(arr.begin(),arr.end());
    sort(dep.begin(),dep.end());
    int count=0;
    while(i<n){
        if(arr[i]<dep[j]){
            count++;
            i++;
        }else{
            count--;
            j++;
        }
        res=max(res,count);
    }
    cout<<res<<"\n";
}


signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int t;
	cin>>t;
	while(t--) solve();
}