import java.util.*;
import java.lang.*;
import java.io.*;

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
        System.out.println("factorial");
 
     
      double n=0;
      double factor = 1;
      for (n=90; n>1; n--)
   {  
       System.out.print(n+"×");
       factor = factor*n;
       
   
   }
     System.out.println("= "+factor);
   
   
   
 
 
 
 
 
    }
}