Pseudocode: Confusing syntax "<>" and "variable:2:6" -

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i studying pseudo code, , despite 3 year history in programming, 1 particular practice-exam question has me perplexed unconventional code (shown below):

enter image description here

highlighted in pink, 2 main problems code. have experience across 3 languages, yet have never encountered control flow method <>, , cannot imagine used for. in addition this, variable average appears in code in form of "average:6:2", equally clueless.

to summarise:

  • what function of control flow method "<>"
  • as stated in question (a) in image above, purpose of 'average:6:2'?

  1. <> common not equal 

    while number not equal 999

  2. number:filed_width:precision pascal formatter real number filed_width being space field , precision numer of digits after dot. 3.141519:4:1 print <space>3.1


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