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78          To create new file
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78   we press  ALT+F choosing  "Files"  submenu.
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78    Press   DOWN  key  to choose  "Create"
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78     Enter      new      file      name
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78  Write     program     text
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78  Write     program     text
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78  Now   we   write   COMMENTS
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78 Write     program     text
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78 Now  we  write  MAIN RULE  of the program
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78  Write     program     text
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78  Now   we   write   another  RULE  of program
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78 Program   is   written ...
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78  To  CHECK  it  we  press  key  F6
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78  Program checked and  now we return to the text editor
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78  Program checked and now we will Execute it.
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78   To  RUN   it  we  press  key  F7
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78  Program is executed; you see the results.
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78  We are in the text editor again
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78  Now we  EXPLAIN  you  the program; look at the cursor
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78   We  traverse  list  of  the  atoms
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78 We load the first element to the variable $E
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78   (*     *)      traverses     other     elements
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78      other     elements   are   loaded   to  $A
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78    returns  value  back  to the  calling  rule
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78       loads the first element of list to $A
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78  (*      *)    traverses    other    elements
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78  other  elements  are accumulated  in  the  list
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78  this list  is  returned to  the   calling  rule
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78 NOW   WE   QUIT  RIGAL  INTEGRATED  ENVIRONMENT
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78       ALT + F   and  then  DOWN  until  "QUIT"
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