1 2 class T1410v1 {3 public static void main(String [] args) {4 // prevent compiler optimization of switch by using args.length5 switch (args.length + 0x7ffffff2) {6 case 0x7ffffff0:7 case 0x7ffffff1:8 case 0x7ffffff2:9 case 0x7ffffff3:10 System.out.print("OK");11 break;12 default:13 System.out.print("NOT_OK");14 }15 }16 }17