import java.util.Scanner;
class Main{
    public static void main(String[]args){
        Scanner sc=new Scanner(System.in);
        int ans=0;
        String day=sc.next();
        String[]week={"SUN","MON","TUE","WED","THU","FRI","SAT"};
        for(int i=week.length-1;i>0;i--){
            if(day.equals(week[i])){;break;}
            else{ans++;}
        }
        System.out.println(ans+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