/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;
import java.time.LocalTime;

/* 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
	{
		LocalTime t1 = LocalTime.of(0, 1, 42, 519000000);
		LocalTime t2 = LocalTime.of(0, 2, 13, 217000000);
		
		LocalTime diff= t2.minusNanos(t1.toNanoOfDay());
		System.out.println(diff);
		
	}
}