/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
 
String input = "abcde";
StringBuilder sb = new StringBuilder(input);
String output = sb.reverse().toString().replaceAll("(?<=.)(?=.)", "-");
System.out.println(output);  // e-d-c-b-a
 
	}
}

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