/* package whatever; // don't place package name! */
 
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
	{
		TimeZone cet = TimeZone.getTimeZone("CET");
		for (String id : TimeZone.getAvailableIDs()) {
			TimeZone tz = TimeZone.getTimeZone(id);
			if (tz.hasSameRules(cet)) {
				System.out.println(id);
			}
		}
	}
}

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