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The complement to the while loop is the until loop. It’s sort of like a backward while:

i = 0
until i == 6
  i = i + 1
end
puts i

In the example above, we first create a variable i and set it to 0 (zero).
Then we execute a block of code until i is equal to 6. That block of code increments i.
When i is equal to 6, the block ends.
Finally, we print 6, the value of i, to the console.

On line 2, fill in the __ blank so that the loop breaks when counter is greater than 10.

On line 5, increment counter like we do in the example above.

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