#include <stdio.h>

void main(void){
	char kadomatsuA = 'a' ,kadomatsuB = 'a' ,kadomatsuC = 'a';
	scanf("%c %c %c",&kadomatsuA,&kadomatsuB,&kadomatsuC);
	
	if(kadomatsuB != '?'){
		printf("4");
	}else{
		printf("14");
	}
}