Extract and Modify Field in a 32-bit Register

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

uint32_t update_register(uint32_t reg) {
    // Your logic here
    
    uint8_t mask = 0x1F;
    uint8_t value = 0;
    
    value = (reg & (mask << 10)) >> 10;

    if (value < 31)
    {
        value++;
    }

    reg &= ~(mask << 10);
    reg |= (value & mask) <<10;

    return reg;
}

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