Retirement tax questions

Thank you! Actually, I received 4 checks, 

#1.  401K  excess

#2. Income from the 401K excess contribution

#3. 401K Roth excess

#4. Income from the 401K Roth excess contribution

Hope I can report #1 + #3 as part of 2020 tax returns? 

#2 + #4 should be reported as part of 2021 tax returns?