/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.*;
 
/* 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 fieldName = "m_upper";
		if (!(fieldName.charAt(0) == 'm' && Character.isUpperCase(fieldName.charAt(1))))
  		{
     		System.out.println("N");
   		} else {
    		System.out.println("Y");
  		}
	}
 
 
 
}

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