#include <string>
#include <algorithm>
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
string old;
cout << "Введите двоичный код" << endl;
cin >> old;
for(int i = 0; i < old.size(); ++i)
{
cout << old[i];
if (i%4 == 3) cout << " ";
}
}
I2luY2x1ZGUgPHN0cmluZz4KI2luY2x1ZGUgPGFsZ29yaXRobT4KI2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8aW9tYW5pcD4KCnVzaW5nIG5hbWVzcGFjZSBzdGQ7CgppbnQgbWFpbigpCnsKICAgIHN0cmluZyBvbGQ7CiAgICBjb3V0IDw8ICLQktCy0LXQtNC40YLQtSDQtNCy0L7QuNGH0L3Ri9C5INC60L7QtCIgPDwgZW5kbDsKICAgIGNpbiA+PiBvbGQ7CiAgICBmb3IoaW50IGkgPSAwOyBpIDwgb2xkLnNpemUoKTsgKytpKQogICAgewogICAgICAgIGNvdXQgPDwgb2xkW2ldOwogICAgICAgIGlmIChpJTQgPT0gMykgY291dCA8PCAiICI7CiAgICB9Cn0K