/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.* ;
 
/* 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
	{
 
    long count = Long.parseLong( "1503952200000" ) ;
    Instant instant = Instant.ofEpochMilli( count ) ;
 
    ZoneOffset offset = ZoneOffset.of( "+0330" ) ;
    OffsetDateTime odt = instant.atOffset( offset ) ;
 
    Duration d = Duration.parse( "PT15H30M" ) ;
    OffsetDateTime odtLater = odt.plus( d ) ;
 
    System.out.println( "count: " + count ) ; 
    System.out.println( "instant.toString(): " + instant ) ; 
    System.out.println( "odt.toString(): " + odt ) ; 
    System.out.println( "odtLater.toString(): " + odtLater ) ; 
 
	}
}

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