RosettaCodeData/Task/Kaprekar-numbers/C++/kaprekar-numbers-3.cpp

const int Base = 16;
const int N = 4;
std::cout << std::dec << ++Paddy_cnt << ": " << std::hex << k << " is "  << q << " + " << (int)nr << " and squared is " << k*k << ". It is a member of Residual Set " << k%(Base-1) << "\n";