Extract Even Bits Only from 32-bit Register

#include <stdio.h>
#include <stdint.h>

uint32_t extract_even_bits(uint32_t reg) {
    // Your code here
    uint16_t result = 0;

    //We run the loop 16 times as there will be 16 even bits in 32 bit register.
    for(int i=0; i<16; i++)
    {
        if(reg & (1U << (2*i)))
        {
            result |= (1U << i);
        }
    }

    return result;
    
}

int main() {
    uint32_t reg;
    scanf("%u", &reg);
    printf("%u", extract_even_bits(reg));
    return 0;
}

Solving Approach