/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* 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
	{
		Scanner sc = new Scanner(System.in);
		String lang;
 
		while((lang = sc.nextLine()) != null) {
			if (lang.length() % 5 > 0) {
				lang = lang + "_" + lang.toUpperCase();
			}
			System.out.println(lang);
		}
	}
}

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

ZW5fVVMKamEKcGwKYXItRUc=

en_US
ja
pl
ar-EG