Nested Loops

The "print a row" piece fits nice in the place for the body of the the "do something five times" loop.

' Do the loop body five times
FOR LINE = 1 TO 5
  
  ' Print NUM stars in a row
  LET NUM = 10
  PRINT
  FOR STARS = 1 TO NUM
    PRINT "*";
  NEXT STARS
  
NEXT LINE
'
END

The "print a row" section of code is nested inside the "do something five times" loop. Since these pieces are both loops, this situation is called nested loops.

Nested loops are very common. They are like the "wheels within wheels" of modern machinery (or of modern life, for that matter).