/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
/* 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 s = "0 - 22 1985--324"; // 022-198-53-24 
		 run(s);
		 s = "555372654";  // 555-372-654
		 run(s);
		 s = "12-10 23 5555 8361";
		 run(s);
	}
	public static void run(String abc) {
    	String hello = abc.replaceAll("[^a-zA-Z0-9]", "");
   		hello = hello.replaceAll("(?<=\\G\\d{3})(?!$)", "-");
   		System.out.println(hello.replaceAll("\\b(\\d{2})(\\d+)-(\\d)$", "$1-$2$3"));
	}
}

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