There are multiple answers for this question, so I will list them all out below.
~1 and 21
~2 and 20
~3 and 19
~4 and 18
~5 and 17
~6 and 16
~7 and 15
~8 and 14
~9 and 13
~10 and 12
~11 and 11
I hope these were helpful to you, if so, consider marking my answer Brainliest! Have a good night.