/* 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 str = "${URL:URL=https://e...content-available-to-author-only...e.com/private/imgs/ROHAN_ZAVERI.jpg}";
		String patternstr = "https?[^}]*(?=})";
 
		Pattern pattern = Pattern.compile(patternstr);
		Matcher matcher = pattern.matcher(str);
		if (matcher.find()){
		System.out.println(matcher.group(0)); 
		} 
	}
}
 
 

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