Retirement tax questions

I have 12 W2 forms from one employer one W2 has box 1 through 20 . The other 11 W2 forms only have box 18-20 filled out and all 12 W2 forms has 2 numbers in box 18 . I file on TurboTax what do I need to do with this with the 11 w2s that only have 18-20 and boxes 18 having two numbers on each different locality?