package yukicoder.No632;

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		
		String S = in.nextLine();
		String S1 = S.replace("?", "1");
		String S2 = S.replace("?", "4");
		
		boolean flg1 = false;
		boolean flg2 = false;
		if (S1.charAt(0) > S1.charAt(2) && S1.charAt(2) < S1.charAt(4)) {
			flg1 = true;
		}
		if (S1.charAt(0) < S1.charAt(2) && S1.charAt(2) > S1.charAt(4)) {
			flg1 = true;
		}
		
		if (S2.charAt(0) > S2.charAt(2) && S2.charAt(2) < S2.charAt(4)) {
			flg2 = true;
		}
		if (S2.charAt(0) < S2.charAt(2) && S2.charAt(2) > S2.charAt(4)) {
			flg2 = true;
		}
		
		if (flg1 && flg2) {
			System.out.println("14");
		} else if (flg1) {
			System.out.println("1");
		} else if (flg2) {
			System.out.println("4");
		}
	}
}