int main(){
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
	string s;
	cin >> s;
	if (s.size() == 0) return 0;
	int t = 0;
	int p = 0;
	forn(i, s.size()){
		if (s[i] == '(') p++;
		if (s[i] == ')'){
			if (p + 1 <= s.size() - i - 1) t = i;
			p--;
		}
	}
	p = 0;
	forn(i, t){
		if (s[i] == '(') p++;
		if (s[i] == ')') p--;
		cout << s[i];
	}
	cout << '(';
	p++;
	t++;
	while (p > 0){
		cout << ')';
		t++;
		p--;
	}
	while (t < s.size()){
		cout << "()";
		t += 2;
	}

	return 0;
}