class Solution {
boolean solution(String s) {
int openCount = 0;
int closeCount = 0;
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == '(') {openCount++}
else if (s.charAt(i) == ')') {closeCount++;}
if (openCount < closeCount) {return false;}
}
if (openCount == closeCount) {return true;}
return false;
}
}