//uva10931 #include <iostream> const unsigned int MASK = 1<<31; int main(){ using namespace std; int input; while(cin >> input,input){ cout << "The parity of "; unsigned int mask = 1<<31; int count = 0; for(;mask&& !(mask&input);mask >>= 1); for(;mask;mask >>= 1){ cout << 0 + !!(mask & input); count += !!(mask & input); } cout << " is " << count << " (mod 2)."<< endl; } return 0; }