Rotate Left in an 8-bit Register

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

uint8_t rotate_left(uint8_t reg, uint8_t n) {
    // Your code here
    // reg << n shifts bits to the left.
    reg = reg  << n | reg >> (8 - n) & 0xFF; 
    //brings the bits back to the right side and & 0xFF is to make sure the reg is limited to 8 bits.
    return reg;
}

int main() {
    uint8_t reg, n;
    scanf("%hhu %hhu", &reg, &n);
    printf("%u", rotate_left(reg, n));
    return 0;
}