/* 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
	{
		String input = "20230622233803466" ;
		DateTimeFormatter f = DateTimeFormatter.ofPattern( "uuuuMMddHHmmssSSS" ) ;
		LocalDateTime ldt = LocalDateTime.parse( input , f ) ;
 
		String iso8601 = ldt.toString() ; 
        String output = iso8601.replace( "T" , " " ) ;
 
		System.out.println( "iso8601 = " + iso8601 ) ;
		System.out.println( "output = " + output ) ;
	}
}

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