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
    uint32_t temp_reg = 0;
    for(uint8_t i = 0; i <= 30; i+=2){
        temp_reg |= ((reg >> i) & 0x0001) << (i / 2);
    }
    return temp_reg;
    
}

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