A high-altitude research balloon has several helium pressure chambers monitored by automated sensors. If a chamber's pressure falls outside the safe working range, the flight control system must immediately log a critical warning.

• The target pressure for each chamber is 100 kPa.
• The permissible pressure tolerance is plus or minus fifteen kilopascals (inclusive range of 85 kPa to 115 kPa).
• Only chambers with pressures strictly outside this tolerance (less than 85 kPa or greater than 115 kPa) are considered critical.
• An output warning message must be displayed to show the index and pressure of any critical chamber.
• The warning message for each critical chamber must be on a single line.
• No other messages should be displayed.
• A global data structure holding the pressures is provided and must be used as part of the solution.

SET chamberPressures TO [100, 85, 120, 95, 70, 115, 130, 90]

• The solution should work even if the number of chambers in the data structure is changed.

An example output for the dataset above is shown:

Chamber 2 is critical: 120 kPa
Chamber 4 is critical: 70 kPa
Chamber 6 is critical: 130 kPa