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
    int val =0;
    int bit;
    int pos =0;
    for ( int i =0; i < 32; i+=2){
        bit = ( reg >> i) &1;
        val |= bit << pos;
        pos++;}
        return val;
}


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