1) Write a C program that reads a hexadecimal value from the keyboard and then stores the value into an unsigned char variable. Read two int values p and n from the keyboard, where the values are less than 8. Implement the following commands: S - sets the n bits starting at position p to 11..1 R- resets the n bits starting at position p to 00...O F - flips the n bits starting at position p to their inverse bit D-displays the value of the variable I-reads a new hexadecimal value from the keyboard Input: a = 1100 1011; p=4; n=2; S: 1101 1011 R: 1100 0011 F: 1101 0011 2) Repeat exercise 1 using a variable of type unsigned int. Discuss the differences between the two programs