#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
vector<int> v;vector<int> out;
typedef long long ll;
int main(){
    int TC,x;
    cin>>TC;
   // freopen("kk.out","w",stdout);
        int tcn,m;
    while(TC--){
        cin>>tcn>>m;
        v.clear();
        for (int i = 0; i < m; i++) {
            cin>>x;
            v.push_back(x);

        }
        bool sol=0;
        for (int l = 1; l <= m; l++) {

            ll sum=0;
            for (int i = 0; i < l; i++) {
                sum+=v[i];

            }
            ll t=0;
            bool con=0;
            bool dn=1;
            for (int i = l; i < m; i++) {
                t+=v[i];
                dn=0;
                if(t==sum)
                {
                    dn=1;
                    t=0;
                }else if(t>sum)
                {
                    con=1;
                    break;
                }

            }
            if(con || !dn)
                continue;
            cout<<tcn<<" "<<sum<<"\n";
            sol=1;
            break;


        }




    }
    return 0;
}