#include <iostream>
using namespace std;

const int X = 6;

int main() {
	
  #pragma pack(push, sizeof(int))	
	
  int c[X][X] = {
     0,  1,  2,  3,  4,  5,
     6,  7,  8,  9, 10, 11,
    12, 13, 14, 15, 16, 17,
    18, 19, 20, 21, 22, 23,
    24, 25, 26, 27, 28, 29,
    30, 31, 32, 33, 34, 35
  };
  
  #pragma pack(pop)
  
  int sum=0;
  
  for(int i=0; i<X*X; i++)
   	if (((((i % X) > (i % (X+1))) && ((i % (X+1))!=0)) || (i>0 && i<X))) 
   	  sum += (*(int*)c+i);
  
  cout << sum;
}