612mccme

#include <iostream>
#include <vector>

using namespace std;

bool flag = false;

bool count(vector<int> a, vector<int> b, int n, int m) {
    int sum = 0;
    for(int i = 0; i < n; i++)
        sum += a[i] * b[i];
    return sum == m;
}

void work(vector<int> a, vector<int> b, int n, int m) {
    if(count(a, b, n, m)) {
        cout << a[0 ];
        for(int i = 1; i < n; i++){
            if(b[i] == 1) cout << "+"; else cout << "-";
            cout << a[i];
        }
        cout << "=" << m << endl;
        flag = true;
    }
    else if(!flag) {
        for(int i = 1; i < n; i++)
            if(b[i] == 1) {
                b[i] = -1;
                work(a, b, n, m);
                b[i] = 1;
            }
    }
}

int main()
{
    int m, n;
    cin >> n >> m;
    vector<int> a(n), b(n, 1);

    for(int i = 0; i < n; i++)
        cin >> a[i];

    work(a, b, n, m);
    if(!flag)
        cout << "No solution" << endl;

    return 0;
}