/* 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 hora = "8 hrs 2 mins";
		int firstSpace = hora.indexOf(" ");
		int lastSpace = hora.lastIndexOf(" ");
		StringBuffer buf = new StringBuffer(hora);
 
    	buf.replace(firstSpace, firstSpace + 1, "");
    	buf.replace(lastSpace-1, lastSpace, "");
    	System.out.println(buf.toString());
	}
}

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