1. Write a program that asks the user to enter two numbers a and b. Then, the program
calculates the sum of all odd numbers between a and b (inclusive). You need to call the
input function twice the get a and b. You need to write this program using a while loop.
2. Write a program that asks the user to enter two numbers a and b, and prints all positive
numbers that are divisible by a and are less than b. For example, if b is 100 and a is 10,
print 10 20 30 40 50 60 70 80 90.
3. Write a program that asks the user for 5 numbers (one at a time) and prints the square
root of the number.