/* 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
	{
		// your code goes here
		String ussdmsg = "BAL 250.7 09/06/21" ;
		if(ussdmsg.contains("BAL ")){
			int bindex = ussdmsg.indexOf("BAL");
			System.out.println(ussdmsg.substring(bindex+3,3)); 
		}
		System.out.println("hello");
	}
}

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