Time Limit: 3000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 3372 Accepted Submission(s): 937 Problem Description Sample Input 8 I 2 I -1 I 1 Q 3 L D R Q 2 Sample Output 2 3 Hint The following diagram shows the status of sequence after each instruction: