import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
 
/* 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
	{
 
	    Pattern pattern = Pattern.compile("\\d+(?:\\.\\d+)?");
	    String str="INR100INRINR20.500INR";
	    Matcher matcher = pattern.matcher(str);
	    if(matcher.find()){
	        System.out.println(matcher.group());
	    }
	}
}

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