If you are using a software like Turbotax, you should be able to go to a K-1 input screen. The lines are as follows:
Line 1 Ordinary business income (loss) flows through to Schedule E page
Line 16 code c Nondeductible expenses - do not flow to the return. This is for informational purposes and basis schedules
Line 16 code d Distributions - this also is for informational purposes and does not flow to the return. However, it is used for basis schedules.
Make sure you are tracking your basis in your investment. If you are trying to do this by hand, I recommend using a software like Turbo Tax. There are many limitations and forms that are effected by this information.
If you have any further questions, please do not hesitate to contact me.