import java.util.*;
import java.lang.*;
import java.io.*;
import java.text.*;
 
/* 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
	{
		// your code goes here
		SimpleDateFormat simple = new SimpleDateFormat("yyyy-MM");
		Calendar cal = Calendar.getInstance();
 
            int res = cal.getActualMaximum(Calendar.DATE);
            cal.setTime(simple.parse("2022-02"));
            cal.set(Calendar.DATE,res);
            System.out.println(cal.getTime());
	}
}

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