import java.util.Scanner;

class Main{
    public static void main(String[] args){
        
        int nextSunday;
        Scanner scan = new Scanner(System.in);
        String day = scan.next();

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