/* package codechef; // 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. */
public class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner s=new Scanner(System.in);
		String c=s.next();
		switch(c)
		{case "MON":
		System.out.println("6");
		break;
		case "TUE":
		System.out.println("5");
		break;
		case "WED":
		System.out.println("4");
		break;
		case "THU":
		System.out.println("3");
		break;
		case "FRI":
		System.out.println("2");
		break;
		case "SAT":
		System.out.println("1");
		break;
		default:
		System.out.println("7");}}}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz