1> Find out whether the knots are greater than 12 or not. Store it in a variable called 'Knots'.

2> If 'Knots' is greater than 12 knots,

3> If 'Knots' is less than 12 knots, Marry can land safely at Courtenay Airport.

4>If 'Knots' is greater then 12 knots, Marry can land at Smits airport.