#include <bits/stdc++.h>
#define L(i, m, n) for(int i(m);i < n;i++)
#define pb push_back
#define D(X) cout<<"  "<<#X": "<<X<<endl;
#define in(x) cin >> x
#define SZ(X) int(X.size())
#define clr(A, V) L(i, 0, 111) A[i]=V
#define ff first
#define ss second
#define RF(X) freopen(X, "r", stdin)
#define WF(X) freopen(X, "w", stdout)
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pii;
typedef vector<pii> vpii;
typedef pair<int, string> pis;
typedef vector<string> vs;
typedef pair<pair<int, int>, pair<int, int > > piiii;
const int offset =32000;
bool valid(int n){
    return n>-32000&&n<32000;
}
char op[109];
int vis[109][65000]; /**memset-1**/
int a[109];
int n, target;
bool dp(int index, int sum){
//    printf("index == %d, sum == %d\n", index, sum);
    if(index==n)return sum==target;
    if(vis[index][sum+offset]!=-1)return vis[index][sum+offset];
    bool plus=0, minus=0, divides=0, multiplies=0;
    if(valid(sum+a[index])){
        plus=dp(index+1, sum+a[index]);
        if(plus){
            op[index]='+';
            return 1;
        }
    }
    if(valid(sum-a[index])){
        minus=dp(index+1, sum-a[index]);
        if(minus){
            op[index]='-';
            return 1;
        }
    }
    if(valid(sum*a[index])){
        multiplies=dp(index+1, sum*a[index]);
        if(minus){
            op[index]='*';
            return 1;
        }
    }
    if(sum % a[index] == 0 && valid(sum/a[index])){
        divides=dp(index+1, sum/a[index]);
        if(divides){
            op[index]='/';
            return 1;
        }
    }

    return vis[index][sum+offset]=0;
}
int main(){
//    RF("in.txt");
//    WF("out.txt");
    int t;in(t);
    while(t--){
        memset(vis, -1, sizeof(vis));
        memset(a, 0, sizeof(a));
        L(i,0,109) op[i]=' ';
        in(n);
        L(i,0,n)in(a[i]);in(target);
        if(!dp(1,a[0]))
            cout << "NO EXPRESSION\n";
        else{
            L(i,0,n){
                cout << a[i];
                if(i!=n-1)
                    cout << op[i+1];

            }
            cout <<"="<<target<<endl;
        }
    }
    return 0;
}