import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
      Scanner input = new Scanner(System.in);
      String d = input.nextLine();
      
     switch(d){
     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