import java.io.*;
import java.util.*;

public class Problem3
{
	public static void main(String[]args) throws IOException
	{
		final int oz_gill = 5;
		final int gill_pint = 4;
		final int pint_qt = 2;
		final int qt_ga = 4;
		int amt = 0;
		int oz = 0;
		int qt = 0;
		int gl = 0;
		int pt = 0;
		int ga = 0;
		String from = "";
		String to = "";
		
		Scanner in = new Scanner(new FileReader("DATA3.txt"));
		PrintWriter out = new PrintWriter(new FileWriter("OUT3.txt"));
		
		while(in.hasNext())
		{	
			amt = (Integer)in.nextInt();

			from = (String)in.next();
			to = (String)in.next();
			to = (String)in.next();

			if(from.equals("oz"))
			{
				oz = amt;
				gl = oz / oz_gill;
				pt = gl / gill_pint;
				qt = pt / pint_qt;
				ga = qt / qt_ga;
			} 
			else if(from.equals("gill"))
			{
				gl = amt;
				oz = gl * oz_gill;
				pt = gl / gill_pint;
				qt = pt / pint_qt;
				ga = qt / qt_ga;
			}
			else if(from.equals("pt"))
			{
				pt = amt;
				gl = pt * gill_pint;
				oz = gl * oz_gill;
				qt = pt / pint_qt;
				ga = qt / qt_ga;
			}  
			else if(from.equals("qt"))
			{
				qt = amt;
				pt = qt * pint_qt;
				gl = pt * gill_pint;		
				oz = gl * oz_gill;
				ga = qt / qt_ga;
			}  
			else if(from.equals("gal"))
			{
				ga = amt;
				qt = ga * qt_ga;
				pt = qt * pint_qt;
				gl = pt * gill_pint;		
				oz = gl * oz_gill;
			}  
			
			
			if(to.equals("oz"))
				out.println( oz);
			else if(to.equals("gill"))
				out.println( gl);
			else if(to.equals("pt"))
				out.println( pt);
			else if(to.equals("qt"))
				out.println( qt);
			else if(to.equals("gal"))
				out.println( ga);
		}
			
	
				
		
		out.close();
	}
}