import java.util.*;
import java.lang.*;

class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
String s = "2013-03-15T07:23:13Z";
String res = s.substring(8, 10) + "-" + s.substring(5, 7) + "-" + s.substring(0, 4);
System.out.println(res);
	}
}