/* 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
	{
        System.out.println(
        	LocalDateTime     
			.parse(                             
			    "2021-12-09 15:58:22"      
			    .replace( " " , "T" )        
			)                               
			.atZone(                            
			    ZoneId.of( "America/Montreal" )  
			)                                   
			.toInstant()               
			.toEpochMilli()                      
        );
	}
}

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