I need help!

Question

A snail is in a well of H meters, it goes up Ld meters during the day and down Ln meters at night. How long will it take to go up?

The variables H, Ld and ln are set by the user.
I don't know how to start it

Answer 1

Read your inputs
Days is zero
While not out
Increment days
Climb
If out
Exit loop
Fall

Answer 2

So pls include in the question a link to your attempt in Code Playground and a description of your difficulties.