def read$\_$customer$\_$data$($filename$)$: $"""$Read and return data from filename as a list of lists $($name$,$ state, debt$)"""$ names $=[]$ states $=[]$ debts $=[]$ with open$($filename$)$ as f: rows $=$ f$.$readlines$()$ for row in rows: row $=$ row.split$(\text{'},\text{'})$ names.append$($row$[0])$ states.append$($row$[1])$ debts.append$($float$($row$[2].$strip$()))$ return names, states, debts # Main portion of the program if $\_\_$name$\_\_==\text{'}\_\_$main$\_\_\text{'}$: # number of rows to consider num$\_$customers $=$ int$($input$())$ names, states, debts $=$ read$\_$customer$\_$data$("$CustomerData$.$csv$")$ # Type your code here.