Input Validation

Can anyone help me with this work:
Develop a flowchart with a set of rules and incorporate the input validation rules Minimum length:
8 characters
Starts with a capital letter
Maximum 20 characters
The user is allowed 3 attempts to type the correct string
<3 Thanks

Hi @1261996112abc,
Welcome to the Community!
Have you done anything so far? People are helpful but you need to show some initiative. Try to build something and then show us what you got and where is the problem etc.