import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
 
public class Main {
    public static void main(String[] args) {
      String str = "";  
      BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        
        try {
            str = reader.readLine();
            reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
      switch (str) {
       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;
        default:
          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