public class Main {

	public static void main(String[] args) {
		
		String input_str = new java.util.Scanner(System.in).nextLine();

		String[] str = {"SAT", "FRI", "THU", "WED", "TUE", "MON", "SUN"};
		for(int i = 0; i < 7; i++) {
			if(input_str.equals(str[i])){
				System.out.println(i + 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