data $=[]$

data$\_$point $=$ input$("$Enter a data point $(-1$ to stop input$)$: $")$

while data$\_$point $!="-1"$:

if $","$ not in data$\_$point:

print$("$Error: No comma in string."$)$

elif data$\_$point.count$(",")>1$:

print$("$Error: Too many commas in input."$)$

else:

words $=$ data$\_$point.split$(",")$

try:

data$\_$string $=$ words$[0].$strip$()$

data$\_$integer $=$ int$($words$[1])$

data.append$(($data$\_$string, data$\_$integer$))$

except ValueError:

print$("$Error: Comma not followed by an integer."$)$

data$\_$point $=$ input$("$Enter a data point $(-1$ to stop input$)$: $")$

print$("$

$\{$:$>33\}".$format$($title$))$

print$("\{$:$>19\}|\{$:$<22\}".$format$($header$1,$ header$2))$

print$("-"*43)$

for item in data:

print$("\{$:$>19\}|\{$:$<22\}".$format$($item$[0],$ item$[1]))$

print$("$

$\{$:$<20\}".$format$($header$1))$

for item in data:

print$("\{$:$<20\}".$format$($item$[0]),"*"*$ item$[1])$