import java.util.*;

public class Main {
	public static void main (String[] args) {
    	Scanner sc = new Scanner(System.in);
    	String s1 = sc.next();
    	String s2 = sc.next();
    	boolean result1 = (s1.equals("Sat") || s1.equals("Sun"));
    	boolean result2 = (s2.equals("Sat") || s2.equals("Sun"));
    	if (result1 && result2) {
    	    System.out.println("8/33");
    	} else if (result1) {
    	    System.out.println("8/32");
    	} else {
    	    System.out.println("8/31");
    	}
	}
}