import java.util.*;

class Main {
  public static void main(String... args) {
    Scanner scan = new Scanner(System.in);
    String S = scan.next();
    scan.close();
    
    HashMap<String, Integer> days = new HashMap();
    days.put("SAT", 1);
    days.put("FRI", 2);
    days.put("THU", 3);
    days.put("WED", 4);
    days.put("TUE", 5);
    days.put("MON", 6);
    days.put("SUN", 7);
    
    System.out.println(days.get(S));
  }
}
/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