The following coding system shows the letter codes for numbers. Excluding the exceptions mentioned below, the digits in the question are to be transformed into letter codes as follows:

Digit	0	1	2	3	4	5	6	7	8	9
Letter Code	A	B	C	D	E	F	G	H	I	J

Exceptions:

i. If a number begins with a nonzero even digit, that digit should be coded as N.

ii. If a number begins with a nonzero odd digit, that digit should be coded as P.

iii. If a number begins and also ends with non-zero even digits, those two digits at the extreme ends should be coded as Q.

iv. If a number begins and also ends with nonzero odd digits, those two digits at the extreme ends should be coded as W.

v. If a number's middle digit is a multiple of 2 that digit should be coded as Z.

Barring these exceptions, the other digits should be codified as per the above-mentioned letter codes.

Find the appropriate code for the following number-group 3214067