import java.util.*;
public class Main {
    public static void main(String[] args) {
        String[] WeekDAYS = new String[]{"SUN","MON","TUE","WED","THU","FRI","SAT"};
        Scanner obj1=new Scanner(System.in);
        String str = obj1.nextLine();
        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 if(str.equals("SAT"))
            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