Sweet Spot Average

You are given a list of integers representing daily sales over a week. Write a function that computes the average sales for days where sales are above a certain threshold. If no days meet the criteria, return 'No sales above threshold'. Input format: First line contains the threshold (an integer), and the second line contains the 7 integers representing the sales for seven days. Output format: Print the average of the sales that exceed the threshold rounded to two decimal places, or print 'No sales above threshold' if none exist. Example: Input: 100 120 85 150 200 90 50 300 Output: 190.00