Sam

1. The answer to this puzzle is four characters long.

2. Just like a word in the clue.

3. Of course, you can't just type it straight.

4. It seems you need to encode it first. Fortunately you're given part of the code.

5. According to the clue, E is 6, A is 2 and C is 6. But what about H?

6. The code follows a pattern.

7. The first set of three letters are represented by numbers starting from 2 and increasing by 2.

8. The second set of letters are represented by numbers starting from 3 and increasing by 3.

9. It follows that the letters GHI would be represented by 4, 8 and 12. So H is 8.

(SOLUTION FOLLOWS)

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10. Type 6268.