Develop an algorithm, using either pseudo-code or a flowchart, that:

• initialises a variable called validAccess to False
• sets the variable validAccess to True if the string contained in the variable tokenID is exactly 3 characters in length, begins with a lowercase 'k', has an uppercase 'A' as its second character, and has a single numeric digit as its third character

Examples:

• If the value of tokenID is "kA7" or "kA0", then validAccess should be True
• If the value of tokenID is "KA7", "ka7", "kA77", or "kAB", then validAccess should be False

You may wish to use the following in your answer:

• The subroutine isDigit(ch) which returns True if the character ch is a digit (e.g., "0" to "9") and False otherwise.
• The function length(string) which returns the number of characters in a string.