#include <iostream>
using namespace std;

int main() {
    unsigned int c = 0x1234;     
    unsigned int b = (c & 0xf) | ((c & 0xf0) << 4) |
                     ((c & 0xf00) << 8) | ((c & 0xf000) << 12);
    b |= (b << 4);
    
    printf("%x -> %x", c, b);
    return 0;
}