2023: 质数王国
          Memory Limit:128 MB
          Time Limit:1.000 S
         
      
      
        
          Judge Style:Text Compare
          Creator:
      
      
          Submit:12
          Solved:8
      
Description

Input

Output
输出一个整数表示答案
        Sample Input Copy
5
1 2 3 4 5
Sample Output Copy
2HINT
