import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
	// write your code here
        String s ;
        Scanner input =new Scanner(System.in);
        s = input.nextLine();
        if (s.equals("SUN"))
            System.out.println("7");
        else if (s.contains("MON"))
            System.out.println("6");
        else if(s.contains("TUE"))
            System.out.println("5");
        else if(s.contains("WED"))
            System.out.println("4");
        else if(s.contains("THU"))
            System.out.println("3");
        else if(s.contains("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