Completing Schedule J

 I am currently preparing my 2019 tax forms. Turbo tax requires base year information, from previous years to complete the Sch J worksheet including 'deduction for exemptions'. The problem is that my 2018 1040 has no line 42 ('deduction for exemptions') as the 2016 & 2017 1040 forms do. The 1040 forms changed in 2018 but the Turbo Tax directions do not reflect that change. Line 42 on the older forms is titled exemptions. What is the corresponding line on the 2018 1040 form? From what line on the 2018 1040 form do I take the 'deduction for exemptions' required on the worksheet?