import java.util.Scanner;
 
public class Main {

	public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    String[] day = {"SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT"};
    for(int i = 0; i < 7; i++) {
        if(s.equals(day[i])) {
            System.out.println(7 - 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