import java.util.*;

public class Main {
    public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    String  S = sc.next();
    
	if(S. equals ("SUN")){
		System.out.println("7");
	}else if(S. equals ("MON")){
		System.out.println("6");
	}else if(S. equals ("TUE")){
		System.out.println("5");
	}else if(S. equals ("WED")){
		System.out.println("4");
	}else if(S. equals ("THU")){
		System.out.println("3");
	}else if(S. equals ("FRI")){
		System.out.println("2");		
	}else {
		System.out.println("1");
		}
	}
}

/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