import java.util.*;
public class Main{
public static void main(String[] args){
String[] days={"MON","TUE","WED","THU","FRI","SAT","SUN"};
Scanner s=new Scanner(System.in);
  String in=s.next();
  int mark;
 	for(int i=0;i<days.length;i++){
    if(in.equals(days[i])){
      int ans=6-i;
      if(ans==0)
        ans=7;
    System.out.println(ans);
      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