time to 0 and set the current position current_pos to 'a' (which is 0 when considering 'a' as 0, 'b' as 1, ..., 'z' as 25).word.target_pos in the same way as current_pos.clockwise_dist and the counterclockwise distance counterclockwise_dist between current_pos and target_pos.clockwise_dist and counterclockwise_dist.time.current_pos to target_pos.time.