/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.concurrent.ConcurrentHashMap;
 
/* 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
		long lng=3000l;
		 Map<String, Long> unlocked = new ConcurrentHashMap<>();
		 System.out.println( (lng - unlocked.get("abc")));
	}
}

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