Question 20
In the cryptarithm, different letters stand for different digits. Find the largest possible value of the four-digit number MATH.

Convention: leading digits $M,I,F$ are nonzero.
Answer format: enter one whole number without units. The printed paper uses four answer-sheet digits with leading zeros when needed; ordinary numeric entry is used here.

Convention: leading digits $M,I,F$ are nonzero.
Answer format: enter one whole number without units. The printed paper uses four answer-sheet digits with leading zeros when needed; ordinary numeric entry is used here.