import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		@SuppressWarnings("resource")
		Scanner scanner = new Scanner(System.in);
		String s = scanner.next();

		switch (s) {
		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