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

public class Main{
    public static void main(String[] args)throws Exception{
        Scanner sc=new Scanner(System.in);
        String str=sc.next();
        sc.close();
        if(str.equals("SUN")){
            System.out.println(7);
        }else if(str.equals("MON")){
            System.out.println(6);
        }else if(str.equals("TUE")){
            System.out.println(5);
        }else if(str.equals("WED")){
            System.out.println(4);
        }else if(str.equals("THU")){
            System.out.println(3);
        }else if(str.equals("FRI")){
            System.out.println(2);
        }else{
            System.out.println(1);
        }
    }
}
/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