/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.* ;
import java.time.temporal.* ;
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
	{
 
        LocalDate ld = LocalDate.of( 2019 , Month.JANUARY , 1 ) ;
        long week = ld.get( WeekFields.ISO.weekOfWeekBasedYear() ) ;
 
        System.out.println( "ld.toString(): " + ld ) ;
        System.out.println( "week: " + week ) ;
	}
}

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