/* 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 example = "the sun was shin- ing and the sky bl- ue or bl- u- es";
        System.out.println(example.replaceAll("(?<=\\w)-\\s(?=\\w)", ""));
	}
}