verfication failed but runs fine

BufferedReader b = new BufferedReader(new InputStreamReader(System.in));

           int a = Integer.parseInt(b.readLine());
           int b1 = Integer.parseInt(b.readLine());

           if (a<b1)
           System.out.println(a);
           else if (b1<a)
           System.out.println(b);
           else if(a==b1)
           System.out.println(a);