The following pseudocode algorithm is intended to input 8 exam marks, find the highest mark, and display it. However, the algorithm contains a logic error and does not work correctly.

1  SET highest_mark TO 0
2  SET current_mark TO 0
3  FOR count FROM 1 TO 8 DO
4      RECEIVE current_mark FROM (INTEGER) KEYBOARD
5      IF current_mark < highest_mark THEN
6          SET highest_mark TO current_mark
7      END IF
8  END FOR
9  SEND 'The highest mark is: ' & highest_mark TO DISPLAY