Write a VBA code to convert an arbitrary binary integer number to its equivalent decimal number. Specific requirements: Use InputBox function to acquire the input for an arbitrary binary integer number; Convert the binary integer to its equivalent decimal number; Return the decimal number in a message box. Submit your (VBA code) Excel screen shoot.

Below functions may be useful in your VBA code:

Val( ): can convert a string-type number in ( ) to its numeric value;

Len( ): can count the length or how many characters in the string in ( );

Mid( , , ) : can select and pick up certain characters from a string.