#include <iostream>

int main()
{
   int bit = 0;
   bit |= 1;
   bit |= 2;
   bit |= 4;
   bit |= 8;

   if ((bit & 1) && (bit & 2) && (bit & 8)) {
      std::cout << "a" << std::endl;
   } 
   else {
      std::cout << "b" << std::endl;  
   }

   if (bit & (1 | 2 | 8)) {
      std::cout << "a" << std::endl;
   } 
   else {
      std::cout << "b" << std::endl;  
   }
}