#include<bits/stdc++.h>
using namespace std;
int main()
{
    cout<<27;
	return 0;
}

 int main() 
 { 
   cout<<91/39; - [ ] - [ ] > ~~wertyuikol**</u>*~~
 }

using namespace std;
 int main() 
 { 
   cout<<91/39; 
 }

 using namespace std;
 int main() 
 { 
   cout<<91/39<<endl; 
 }