3. Implement function flip_bits(int value, int pos, int n) that flips each of the n consecutive bits of value at bit postion pos, pos + 1, ..., pos + n - 1, i.e. changes bit value 1 to bit value 0, and bit value 0 to bit value 1, and prints out the result in hexdecimal. For example, flip_bits(0x8C3E, 10, 3) will print out 0x903E, which is the result of flipping bit position 10, 11, and 12 of 0x8C3E. You can assume that all the bit positions specified by pos and n are valid bit positions.