$-$ Sample Run $1$

$-----$ Enter one line of words at a time, Enter a blank line to stop

Enter line: It was the best of times it was the worst of times

Enter line: it was the age of wisdom it was the age of foolishness

Enter line: it was the epoch of belief it was the epoch of incredulity

Enter line: it was the season of Light it was the season of Darkness

Enter line: it was the spring of hope it was the winter of despair

Enter line: we had everything before us we had nothing before us

Enter line: we were all going direct to Heaven we were all going direct the other way

Enter line: in short

Enter line: the period was so far like the present period that some of its noisiest authorities insisted on its being re

ceived

Enter line: for good or for evil in the superlative degree of comparison only.

Enter line:

There were $10$ lines containing $119$ words

There was an average of $4\mathrm{.}00$ characters per word

$-$ Sample Run $2$

$```$

$-----$ Enter one line of words at a time, Enter a blank line to stop $-----$

Enter line: Call me Ishmael

Enter line: Some years ago

Enter line: never mind how long precisely

Enter line: having little or no money in my purse

Enter line: and nothing particular to interest me on shore

Enter line: I thought I would sail about a little and see the watery part of the world

Enter line: It is a way I have of driving off the spleen

Enter line: and regulating the circulation

Enter line: Whenever I find myself growing grim about the mouth

Enter line: whenever it is a damp

Enter line: drizzly November in my soul

Enter line: whenever I find myself involuntarily pausing before coffin warehouses

Enter line: and bringing up the rear of every funeral I meet

Enter line: and especially whenever my hypos get such an upper hand of me

Enter line: that it requires a strong moral principle to prevent me from deliberately stepping into the street

Enter line: and methodically knocking people's hats off

Enter line: then

Enter line: I account it high time to get to sea as soon as I can

Enter line: This is my substitute for pistol and ball

Enter line: With a philosophical flourish Cato throws himself upon his sword

Enter line: I quietly take to the ship

Enter line: There is nothing surprising in this

Enter line: If they but knew it

Enter line: almost all men in their degree

Enter line: some time or other

$``````$

Enter line: With a philosophical flourish Cato throws himself upon his sword

Enter line: I quietly take to the ship

Enter line: There is nothing surprising in this

Enter line: If they but knew it

Enter line: almost all men in their degree

Enter line: some time or other

Enter line: cherish very nearly the same feelings towards the ocean with me

Enter line:

There were $26$ lines containing $201$ words

There was an average of $4\mathrm{.}40$ characters per word

$```$

$-$ Sample Run $3$

$```$

$-----$ Enter one line of words at a time, Enter a blank line to stop

Enter line: Once upon a midnight dreary

Enter line: as I pondered weak and weary

Enter line: Over many a quaint and curious volume of forgotten lore

Enter line: While I nodded

Enter line: nearly napping

Enter line: suddenly there came a tapping

Enter line: As of someone gently rapping

Enter line: rapping at my chamber door

Enter line:

There were $8$ lines containing $41$ words

There was an average of $4\mathrm{.}59$ characters per word

$```$

$-$ Sample Run $4$

$-----$ Enter one line of words at a time, Enter a blank line to stop

Enter line:

There were $0$ lines containing $0$ words

There was an average of $0\mathrm{.}00$ characters per word

$(18$ points$)$ Test cases

$-$ Fill these out before you write the program! As usual, put them in a comment at the bottom of your program file. Use a calculator to figure these. In the Lines input column, the commas represent pressing the Enter key, the Enter also represents pressing the Enter key.

$10$ points$)$ Design

$-$ As usual, $3$ P$\text{'}$s for your program!

$-$ There are $($at least$)$ two different ways to design this program. It's your call which you do$.$ DOCUMENT your choice!

$1.$ Process the strings of input as you get them. In the sentinel logic loop, just do the splitting of the string and counting and totaling within the loop. You don't need to store the original input string after that. When the loop is finished $($the user hits Enter$),$ you are ready to output results and calculate the average.

$2.$ Accumulate the strings of input into one big string in the sentinel logic loop. After the loop is finished $($the user hits Enter$),$ you can do one split and another loop to traverse the list that split generated.

$-$ Another design decision is which kind of traversal you will use, either the "for item in list" or "for i in range$($len$($list$))"$ Either will work here.