import java.util.Scanner;

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

        String s = scan.next();

        String[] str = new String[7];
        str[0] = "SAT"; 
        str[1] = "FRI";
        str[2] = "THU";
        str[3] = "WED";
        str[4] = "TUE";
        str[5] = "MON";
        str[6] = "SUN";

        for(int i = 1; i <= 7; i++){
            if(s.equals(str[i - 1])){
                System.out.println(i + " ");
                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