#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define rep(i,a,b) for (ll i = a; i < b; i++)
#define inf 1e18+1

using namespace std;
ll m,k;
ll p[505];

bool isvalid(ll guess){
	ll ind = 0;
	ll used = k;
	ll curr = 0;
	while (ind<m and used){
        if (curr+p[ind]>=guess){
            used--;
            curr = 0;
        }else{
            curr+=p[ind];
            ind++;
        }
	}
    return ind==m;
}

void solve() {
    cin>>m>>k;
    ll s = 0;
	rep(i,0,m) {
        cin>>p[i];
        s+=p[i];
    }
    ll b = -1;
    for (ll i = s+1;i>=1;i/=2){
        while (!isvalid(b+i)) b+=i;
    }
    // cout<<b<<"\n";
    ll ind = 0;
	ll used = k;
	ll curr = 0;
	while (ind<m and used){
        if (curr+p[ind]>b){
            used--;
            curr = 0;
            cout<<"/ ";
        }else{
            curr+=p[ind];
            cout<<p[ind]<<" ";
            ind++;
        }
	}
    cout<<"\n";
}


int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
    cin >> t;
    while (t--) {
        solve();
    }
    return 0;
}