#include <iostream>
#include <string>

int main( void ){
	std::string str1, str2;
	std::cin >> str1 >> str2;
	if ((str1 == "Sat" && str2 =="Sun") || (str2 == "Sat" && str1 =="Sun")){
		std::cout << "8/33" << std::endl;
	}
	else if (str1 == "Sat" || str1 == "Sun"){
		std::cout << "8/32" << std::endl;
	}
	else{
		std::cout << "8/31" << std::endl;
	}
	return 0;
}