How do you do Harmonica Tabs

This song really was printed with just four bars. It made my laugh,
maybe the composers were in a hurry

-4 -4 -4 3
I am Mary.

-1 <-2 -3 3 How do you do?-3 -3 -3 <-2 I am Lilly.-1 <-2 3 How are you?