WA in ANARC09A (Java)

All test cases produce correct outputs. I read the comments about output formatting and tried using System.out.print(…+ “\r”) instead of println to no avail. Should I be using a different type of input/output eg BufferedReader or PrintStream? Would appreciate any tips.

> Blockquote
    public class Main {
    	public static void main(String[] args) {
    		LinkedList<String> out = new LinkedList<String>();
    		Scanner sc = new Scanner(System.in);
    		int lncount = 1;
    		while(sc.hasNextLine()) {
    			char[] in = sc.nextLine().toCharArray();
    			if(in[0]=='-') break;
    			LinkedList<Character> process = new LinkedList<Character>();
    			int operations = 0;
    			int openstacked = 0;
    			for(int i=0; i<in.length; i++) {
    				char c = in[i];
    				if(c=='{') openstacked++;
    				else if(c=='}') {
    					if(openstacked==0) process.add(c);
    					else openstacked--;
    				}
    			}
    			if(openstacked>0) for(int i=0; i<openstacked; i++) process.add('{');
    			while(process.size()>0) {
    				if(process.get(0)!='{') operations++;
    				if(process.get(process.size()-1)!='}') operations++;
    				process.remove(0);
    				process.remove(process.size()-1);
    			}
    			out.add(lncount+". "+operations+"\r");
    			lncount ++;
    		}
    		sc.close();
    		for(int i=0; i<out.size(); i++)
    			System.out.print(out.get(i));
    	}
    }