In this live studio task, the contestants are first given a task brief which is actually not what they will be judged on, and are then asked to recall how many letter 'S's there were in that task brief.
In this version of the task, the initial task brief is read out but then the contestants do not have to follow its instructions, with the second task brief being introduced as a 'replacement'.
In this version of the task, the contestants actually have to complete the first part of the task (throwing one of their socks between two lines) before the existence of the second part is revealed.