/* 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 epochMicroSeconds = 1_529_948_813_696_123L ;
long epochSeconds = epochMicroSeconds / 1_000_000L ;
long nanoOffset = ( epochMicroSeconds % 1_000_000L ) * 1_000L ;
Instant instant = Instant.ofEpochSecond( epochSeconds, nanoOffset ) ;
 
System.out.println( "instant.toString(): " + instant ) ;
	}
}

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