import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        HashMap<String, Integer> week = new HashMap<>();
        week.put("SAT", 1);
        week.put("FRI", 2);
        week.put("THU", 3);
        week.put("WED", 4);
        week.put("TUE", 5);
        week.put("MON", 6);
        week.put("SUN", 7);
        String S = br.readLine();
        System.out.println(week.get(S));
    }
}

/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