import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        switch (in.nextLine()){
            case "SUN":
                System.out.println(7);
                break;
            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;
        }
    }
}
/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