1678 Goal Parser Interpretation.java

class Solution {
    public String interpret(String command) {
        StringBuilder ans = new StringBuilder();
        for(int i = 0; i < command.length(); i++) {
            if(command.charAt(i) == 'G') {
                ans.append('G');
            }else if(command.charAt(i) == '(') {
                if(command.charAt(i + 1) == ')') {
                    ans.append('o');
                    i++;
                }else {
                    ans.append("al");
                    i += 3;
                }
            }
        }
        return ans.toString();
    }
}