#include <iostream>
#include <string>
using namespace std;
int main(){
	string S1,S2;
	cin>>S1>>S2;
	if((S1=="Sun")||(S1=="Sat")){
		if((S2=="Sun")||(S2=="Sat")){
			cout<<"8/33";
		}else{
			cout<<"8/32";
		}
	}else{
		cout<<"8/31";
	}
	return 0;
}