Question 6
A telephone number has the form $ABC - DEF - GHIJ,$ where each letter represents a different digit. The digits in each part of the number are in decreasing order; that is, $A \gt B \gt C,$ $D \gt E \gt F,$ and $G \gt H \gt I \gt J.$ Furthermore, $D,$ $E,$ and $F$ are consecutive even digits; $G,$ $H,$ $I,$ and $J$ are consecutive odd digits; and $A + B + C = 9.$ Find $A.$