string str;

cin >> str;

int len = str.length();

int num = 0;

int ret = -1;

for (int i = len - 1; i >= 0; --i) {

if (str[i] == '(') {

++num;

if (num < 0) {

ret = i;

break;

}

} else {

--num;

}

}

if (ret == -1) cout << "No solution" << endl;

else {

for (int i = 0; i < ret; ++i) {

cout << str[i];

}

cout << ')';

int sl = 0, sr = 0;

for (int i = 0; i < ret; ++i) {

if (str[i] == '(') ++sl;

else ++sr;

}

++sr;

for (int i = 0; i < len / 2 - sl; ++i) cout << '(';

for (int i = 0; i < len / 2 - sr; ++i) cout << ')';

cout << endl;

}

return 0;