#include <iostream>
int main()
{
int bit = 0;
bit |= 1;
bit |= 2;
bit |= 4;
bit |= 8;
if ((bit & 1) && (bit & 2) && (bit & 8)) {
std::cout << "a" << std::endl;
}
else {
std::cout << "b" << std::endl;
}
if (bit & (1 | 2 | 8)) {
std::cout << "a" << std::endl;
}
else {
std::cout << "b" << std::endl;
}
}
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