Код Хэмминга

#include <iostream>
#include <conio.h>
#include <math.h>
#include <string>
#include <algorithm>

using namespace ::std;

int main()
{
    int I, II, III, IV;
    int i, ii, iii;

    cin >> I >> II >> III >> IV >> i >> ii >> iii;
    if (i != (IV + II + III) % 2 && ii == (IV + III + I) % 2 && iii != (IV + II + I) % 2)
        if (II == 1)
        {
            cout << I << " " << 0 << " " << III << " " << IV << " " << i << " " << ii << " " << iii;
        }
        else
            cout << I << " " << 1 << " " << III << " " << IV << " " << i << " " << ii << " " << iii;
    else
        if (i != (IV + II + III) % 2 && ii != (IV + III + I) % 2 && iii == (IV + II + I) % 2)
            if (III == 1)
            {
                cout << I << " " << II << " " << 0 << " " << IV << " " << i << " " << ii << " " << iii;
            }
            else
                cout << I << " " << II << " " << 1 << " " << IV << " " << i << " " << ii << " " << iii;
        else
            if (i == (IV + II + III) % 2 && ii != (IV + III + I) % 2 && iii != (IV + II + I) % 2)
                if (I == 1)
                {
                    cout << 0 << " " << II << " " << III << " " << IV << " " << i << " " << ii << " " << iii;
                }
                else
                    cout << 1 << " " << II << " " << III << " " << IV << " " << i << " " << ii << " " << iii;
            else
                if (i != (IV + II + III) % 2 && ii == (IV + III + I) % 2 && iii == (IV + II + I) % 2)
                    if (i == 1)
                    {
                        cout << I << " " << II << " " << III << " " << IV << " " << 0 << " " << ii << " " << iii;
                    }
                    else
                        cout << I << " " << II << " " << III << " " << IV << " " << 1 << " " << ii << " " << iii;
                else
                    if (i == (IV + II + III) % 2 && ii != (IV + III + I) % 2 && iii == (IV + II + I) % 2)
                        if (ii == 1)
                        {
                            cout << I << " " << II << " " << III << " " << IV << " " << i << " " << 0 << " " << iii;
                        }
                        else
                            cout << I << " " << II << " " << III << " " << IV << " " << i << " " << 1 << " " << iii;
                    else
                        if (i == (IV + II + III) % 2 && ii == (IV + III + I) % 2 && iii != (IV + II + I) % 2)
                            if (iii == 1)
                            {
                                cout << I << " " << II << " " << III << " " << IV << " " << i << " " << ii << " " << 0;
                            }
                            else
                                cout << I << " " << II << " " << III << " " << IV << " " << i << " " << ii << " " << 1;
                        else
                            if (i != (IV + II + III) % 2 && ii != (IV + III + I) % 2 && iii != (IV + II + I) % 2)
                                if (IV == 1)
                                {
                                    cout << I << " " << II << " " << III << " " << 0 << " " << i << " " << ii << " " << iii;
                                }
                                else
                                    cout << I << " " << II << " " << III << " " << 1 << " " << i << " " << ii << " " << iii;
                            else
                                cout << I << " " << II << " " << III << " " << IV << " " << i << " " << ii << " " << iii;
    _getch();
    return 0;
}