import java.util.*;
class Main {
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        String n = sc.nextLine();
        System.out.println(ret(n));
        sc.close();
    }
    static int ret (String n){
        int ret = 7;
        switch (n) {
            case "MON":
                ret = 6;
                break;
            case "TUE":
                ret = 5;
                break;
            case "WED":
                ret = 4;
                break;
            case "THU":
                ret = 3;
                break;
            case "FRI":
                ret = 2;
                break;
            case "SAT":
                ret = 1;
                break;
            default:
                break;
        }
        return ret;
    }
}
/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