import java.util.Scanner;

public class Main {
	public static void main(String args[]){
		Scanner sc = new Scanner(System.in);
		String s = sc.next();

		String[] a = {"SUN","MON","TUE","WED","THU","FRI","SAT"};
		int[] b = {7,6,5,4,3,2,1};

		for(int i = 0 ; i < b.length ; i++){
			if(a[i].equals(s)){
				System.out.println(b[i]);
			}
		}
	}
}
/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