Amir chooses a larger increment
Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.
Amir takes a more lateral approach to the task, and chooses to start counting up in increments of one million. Towards the end of his time, he switches to counting in increments of tens of billions, and thus reaches a total of 40 billion, winning the task by a huge margin.
(Written by Will G and proofread by Karl Craven)