human
Find K such that | A | Function to find k such that | a - k | = | b - k |.
If ( a + b ) is even.
Driver code"
Solution in Python:

=====
Write me a code to find K such that and the other steps required?
assistant
#Here is code to find K such that and the other steps required.
 def find_k ( a , b ) :
	if ( ( a + b ) % 2 == 0 ) :
		return ( ( a + b ) // 2 ) ;
	return - 1 ;
if __name__ == " _ _ main _ _ " :
	a = 2 ; b = 16 ;
	print ( find_k ( a , b ) ) ;