Extract Bit Field from 16-bit Register

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

uint8_t extract_field(uint16_t reg) {
    // Your logic here
    //1. Extract 5 bit field from 4-8
    uint16_t mask = 0x1F;
    //1.1 Shift reg so that bits 4-8 are at the start then & with mask
    uint16_t result = (reg >> 4) & mask;
    return result;
}

int main() {
    uint16_t reg;
    scanf("%hx", &reg);
    printf("%u", extract_field(reg));
    return 0;
}