N=33+33+26+26+15+10=143 101*2=202 байтов 202*8=1616битов
(10012+41001216)*740=30348308720
#include <iostream>
#include <array>
int main()
{
std::array<unsigned int, 3> arr;
short int result{0};
for(auto& i : arr)
std::cin >> i;
if(arr[0] == arr[1])
result++;
if(arr[0] == arr[2])
result++;
if(arr[1] == arr[2])
result++;
std::cout << ((result == 0 || result == 3) ? (result) : (++result)) << std::endl;
return 0;
}