/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.* ;
import java.time.format.* ;
 
/* 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 lt = LocalTime.MIN.plusSeconds( 755L  ) ;
		DateTimeFormatter f = DateTimeFormatter.ofPattern( "HH:mm:ss" ) ;
		String output = lt.format( f ) ;
 
		System.out.println( "output: " + output ) ;
	}
}

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