import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.*;
import java.lang.*;
import java.io.*;

class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Pattern pattern = Pattern.compile("^(\\P{L}+)\\p{L}");
		Matcher matcher = pattern.matcher("1234x");
		if (matcher.find()) {
		    System.out.println(matcher.group(1));
		}
	}
}