class Solution {
public:
    uint32_t reverseBits(uint32_t n) {
        uint32_t result = 0;
        int stepen = 31;
        while(n > 0) {
            int bit = n % 2;
            n /= 2;
            if(bit == 1) {
                result += (1 << stepen);
            }
            stepen--;
        }
        return result;
    }
};