5617.设计Goal解释器

class Solution {
    public String interpret(String command) {
        StringBuilder str=new StringBuilder();
        int i=0,n=command.length();
        while(i<n){
            if(command.charAt(i)=='G'){
                str.append('G');
                i++;
            }else if(command.charAt(i)=='('){
                if(command.charAt(i+1)==')'){
                    str.append('o');
                    i=i+2;
                }else{
                    str.append("al");
                    i=i+4;
                }
            }
        }
        return str.toString();
    }
}

class Solution {
    public String interpret(String command) {
        return command.replace("()","o").replace("(al)","al");
    }
}