#define _CRT_SECURE_NO_WARNINGS

#include <algorithm>
#include <bitset>
#include <cassert>
#include <chrono>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <initializer_list>
#include <iomanip>
#include <iostream>
#include <map>
#include <math.h>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <stdexcept>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>

using namespace std;

#define ll long long
#define ull unsigned long long
#define ld long double
#define sz(a) (int) a.size()

const int inf = (int)1e9;
const ll linf = (ll)2e18;

const ll mod = (ll)1e9 + 7ll;

void solve() {
	string s;
	cin >> s;
	vector <string> res;
	int cond = 0; string curr;
	int i = 0;
	while (i < sz(s)) {
		if (cond == 0) {
			cond = 1;
			if (s[i] == '+') {
				
				curr = "(++";
				curr += s[i + 2];
				curr += ')';
				i += 2;
				//cout << curr << endl;
			}
			else {
				curr = "";
				curr += s[i];
				//curr += ')';
				//cout << curr << endl;
			}
			i++;
		}
		else {
			if (s[i] == '+') {
				if (s[i + 1] == '+') {
					curr = "(" + curr + "++)";
					i += 2;
				}
				if (sz(curr) == 1) {
					curr = "(" + curr + ")";
				}
				res.push_back(curr);
				res.push_back("+");
				i++;
				curr = "";
				cond = 0;
				
			}
		}
	}
	if (curr != "")
		if (sz(curr) == 1) {
			curr = "(" + curr + ")";
		}
		res.push_back(curr);

	while (res[sz(res) - 1] == "+" || res[sz(res) - 1] == "")
		res.pop_back();
	
	for (auto st : res) {
		cout << st;
	}
	cout << endl;
}
	

signed main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	//freopen("test.in", "r", stdin);
	//freopen("test.in", "w", stdout);
	//cout << fixed << setprecision(7);

	//clock_t start = clock();

	int tet = 1;
	//cin >> tet;
	while (tet--) {
		solve();
	}

	//clock_t end = clock();
	//ld seconds = (ld)(end - start) / CLOCKS_PER_SEC;
	//cout << seconds << "\n";
}