import java.util.*;


public class Main {

    public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);
      String day = sc.nextLine();
      int output = 0;
        switch(day){
          case "SUN":
            output = 7;
            break;
          case "MON":
            output = 6;
            break;
          case "TUE":
            output = 5;
            break;
          case "WED":
            output = 4;
            break;
          case "THU":
            output = 3;
            break;
          case "FRI":
            output = 2;
            break;
          case "SAT":
            output = 1;
            break;
          default:
            break;
    	}
    System.out.println(output);
    }
}
/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