#include<cstdio>
#include<cstdlib>
int main(void) {
	char a, b, c;
	int A, B, C;
	scanf("%c %c %c", &a,&b,&c);


	if (a == '?') {
		B = atoi(&b);
		C = atoi(&c);
		if ((1 - B)*(C - B) > 0) { printf("1"); }
		else { printf("4"); }
	}
	else if (b == '?') {
		printf("14");
	}
	else if (c == '?') {

		A = atoi(&a);
		B = atoi(&b);

		if ((1 - B)*(A - B) > 0) { printf("1"); }
		else { printf("4"); }
	}

	printf("\n");

	return 0;
}