import java.util.*;
public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String day = sc.nextLine();

        if(day.equals("SUN")){
            System.out.println("7");
        }
        if(day.equals("SAT")){
            System.out.println("1");
        }
        if(day.equals("MON")){
            System.out.println("6");
        }
        if(day.equals("TUE")){
            System.out.println("5");
        }
        if(day.equals("WED")){
            System.out.println("4");
        }
        if(day.equals("THU")){
            System.out.println("3");
        }        
        if(day.equals("FRI")){
            System.out.println("2");
        }

    }
}
/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