#include <iostream>
#include <iomanip>

int main() {
	
	int feet; 
	int inches;
	if (!(std::cin >> std::noskipws >> feet >> inches)){
		std::cout << "failed to read in values" << std::endl;
		return -1;
	}
	
	inches += feet * 12;
	std::cout << inches << std::endl;
}