UVA - 11734 - Big Number of Teams will Solve This

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class Main {

    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        StringBuffer sb = new StringBuffer("");
        String m = "";
        int cases = Integer.parseInt(br.readLine());
        for (int i = 0; i < cases; i++) {
            String str1=br.readLine();
            String str2=br.readLine();
            sb.append("Case ").append((i+1)).append(": ");
            if(str1.equals(str2)){
                sb.append("Yes").append("\n");
            }else{
                StringBuilder temp1=new StringBuilder();
                StringBuilder temp2=new StringBuilder();
                for(int j=0;j<str1.length();j++){
                    if(str1.charAt(j)!=' ')
                        temp1.append(str1.charAt(j));
                }
                for(int j=0;j<str2.length();j++){
                    if(str2.charAt(j)!=' ')
                        temp2.append(str2.charAt(j));
                }
                if(temp1.toString().equals(temp2.toString())){
                    sb.append("Output Format Error").append("\n");
                }else{
                    sb.append("Wrong Answer").append("\n");
                }
            }
        }
        System.out.print(sb);
    }

}