MagicSum

import java.util.Scanner;


public class SumOfCards {


	public static void main(String[] args) {

		Scanner input = new Scanner(System.in);
		String line = input.nextLine().toUpperCase();


		String[] deck = line.split("[S H C D  ]+");
		int finalScore =0;

		for(int i=1;i<deck.length;i++){
			switch(deck[i]){
			case "2":
				int score2 =0;
				if(deck[i-1].equals(deck[i])){
					score2 = (score2+2)*2;
					finalScore +=score2;
				}
				else{
					score2=score2+2;
					finalScore = finalScore+score2;
				}

				break;
			case "3":

					finalScore +=3;

				break;
			case "4":


					finalScore +=4;

				break;
			case "5":

					finalScore +=5;

				break;
			case "6":

					finalScore +=6;

				break;
			case "7":

					finalScore +=7;

				break;
			case "8":

					finalScore +=8;

				break;
			case "9":

					finalScore +=9;

				break;
			case "10":

					finalScore +=10;
							break;
			case "J":


					finalScore +=12;

				break;
			case "Q":

					finalScore +=13;

				break;
			case "K":


					finalScore +=14;

				break;
			case "A":

					finalScore +=15;

			    break;


			}


		}
	System.out.println(finalScore);
	}

}