Part 2 (1 hour): while instruction 1) Write a C programs that counts the number of positive, zero, and negative values input from the keyboard. The three counters are displayed after every new number that was input. The program ends after the same value was input twice, e.g. the same value was immediately input again. 2) Write a program that reads decimal numbers from the keyboard. Find and display the smallest number, the second smallest number, and the third smallest number of the set. The program ends if the largest number encountered does not change for n iterations (the largest number does not change for the next n numbers since it changed). The value of n is read from the keyboard. 3) Write a C program that checks if a character is a vowel or a consonant. The character is input from the keyboard. The program ends when the character '#is input