/* package whatever; // don't place package name! */
import java.util.regex.*;
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 ss = "2.5(4x+3)-2.548^-3.654=-14^-2.545";
        String regex = "(\\-?\\d+\\.\\-?\\d+\\.?\\^\\-?\\d+\\.?\\d+)|(-?\\d+\\.?\\^\\-?\\d+\\.?\\d+)";
        Pattern p = Pattern.compile(regex);
        Matcher m = p.matcher(ss);
 
        while(m.find()){
            System.out.println("Wiwi the cat: "+m.group());
        }
	}
}

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