#include <iostream>
#include <string>
using namespace std;

int main(){
	string in_1,in_2;

	cin>>in_1>>in_2;

	if((in_1=="Sat" || in_1=="Sun") && (in_2=="Sat" || in_2=="Sun")){
		cout<<"8/33"<<"\n";
		exit(0);
	}

	if(in_1=="Sat" || in_1=="Sun"){
		cout<<"8/32"<<"\n";
		exit(0);
	}
	
	cout<<"8/31"<<"\n";

	return 0;
}