import java.io.*;
class Digui
{
      public static void main(String []args)
      {     
            int c = 0;
            int y;
            System.out.println("请输入一个数字:");
            try
            {
                c = System.in.read();
            }
            catch(IOException e){}
             hanshu tt=new hanshu();
            y=tt.jisuan(c);
            System.out.println(y);
            System.out.println(new hanshu().jisuan(c));
            //System.out.println("the score is:"+y);
      }
}

class Hanshu
{    int t = 1;
      int jisuan(int i)
      {
          
          if(i==1)
          { 
          t=1;
          
          }
          else
          {  t = i*jisuan(i-1);
            // System.out.println(t);
            
          }return t;
         
          
      } 
}