Problem Description: Several websites will implement password rules. Write a program that uses a function to
check whether a string is a valid password. The password rule is as follows:
• A password must have at least eight characters.
• A password consists of only letters and digits.
• A password must contain at least two digits.
Write a program that prompts the user to enter a password and displays "valid password"
if the rule is followed or "invalid password" otherwise.
Sample 1
Enter a string for password: wewew43x
valid password
Sample 2
Enter a string for password: 343a
invalid password
Document the following information and save it in a README file (Eg. Readme. txt).
1. Analysis:(Describe the problem including input and output in your own words.)
2. Design: (Describe the major steps for solving the problem.)
3. Testing: (Describe how you test this program)
You are required to submit:
1. The binary source code in Python.

Create a function (prob3_6) that will do the following: input a positive scalar integer x. if x is odd, multiply it by 3 and add 1. if the given x is even, divide it by 2. repeat this rule on the new value until you get 1, if ever. your program will output how many operations it had to perform to get to 1 and the largest number along the way. for example, start with the number 3: because 3 is odd, we multiply by 3 and add 1 giving us 10. 10 is even so we divide it by 2, giving us 5. 5 is odd so we multiply by 3 and add one, giving us 16. we divide 16 (even) by two giving 8. we divide 8 (even) by two giving 4. we divide 4 (even) by two giving 2. we divide 2 (even) by 2 to give us 1. once we have one, we stop. this example took seven operations to get to one. the largest number we had along the way was 16. every value of n that anyone has ever checked eventually leads to 1, but it is an open mathematical problem (known as the collatz conjectureopens in new tab) whether every value of n eventually leads to 1. your program should include a while loop and an if-statement.