MathDB
Game show with 3 prizes

Source: 2009 AIME I #9

March 18, 2009
AMCAIME

Problem Statement

A game show offers a contestant three prizes A, B and C, each of which is worth a whole number of dollars from $1 \$1 to $9999 \$9999 inclusive. The contestant wins the prizes by correctly guessing the price of each prize in the order A, B, C. As a hint, the digits of the three prices are given. On a particular day, the digits given were 1,1,1,1,3,3,3 1, 1, 1, 1, 3, 3, 3. Find the total number of possible guesses for all three prizes consistent with the hint.