Extract and Modify Field in a 32-bit Register

#include <stdio.h>
#include <stdint.h>
#define BIT_POS 10
#define MASK 0x1F
uint32_t update_register(uint32_t reg) {
    // Your logic here

    uint32_t val = (reg>>BIT_POS)&MASK;
    if(val < 31)
    {
        val+=1;
    }
    reg &=~(MASK<<BIT_POS);

    reg |=(val<<BIT_POS);
    return reg;
}

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