An automated medical infusion pump requires the operator to input the hourly dosage of a specific active compound. For clinical safety, the dosage must be at least 8 mg up to a maximum of 35 mg (inclusive).

Develop an algorithm, using either pseudo-code or a flowchart, that validates the input so that the operator is prompted to re-enter the dosage until a valid integer within this range is entered.

You should assume that the operator will always enter an integer.