On my W-2, my company sends me federal, IN state, and city/local reference copies. My box 12 numbers are different for the different copies. How do I fill this out?

For example.  My "Federal Filing Copy" has codes C, D, W, and DD, each with amounts next to them.  My "City or Local Filing Copy" only shows codes C, D, and W all with different money amounts than the Federal Filing Copy.