import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s = "233<C:\\Users\\Grapes\\Documents\\title.png>233<C:\\Users\\Grapes\\Documents\\title.png>33";
		int k = 0;
		StringBuffer result = new StringBuffer();
		Matcher m = Pattern.compile("<[^<>]*>").matcher(s);
		while (m.find()) {
		    m.appendReplacement(result, "<" + ++k + ">");
		}
		m.appendTail(result);
		System.out.println(result.toString());
 
	}
}

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