Three Numbers

Chef has three numbers $A, B,$ and $C$. He can do the following type of operation: - Select two numbers amongst $A, B,$ and $C$; - Add $1$ to the selected numbers; - Subtract $1$ from the remaining number. Determine whether Chef can make all the three numbers **equal** after applying the above operation any number of times. If yes, output the **minimum** number of operations required by Chef.