IV. Friday problems on Python I/O
 A. Output of repetative song lyrics
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          FOR YOU TO DO

1. Write a procedure to output the lyrics
   of the civil rights song
   "We Shall Overcome"
   with a minimum amount of repeated code.

   The lyrics are:

   We shall overcome
   We shall overcome
   We shall overcome
   Some day...

   (Oh,) deep in my heart
   I do believe
   We shall overcome
   Some day.

   We'll walk hand in hand
   We'll walk hand in hand
   We'll walk hand in hand
   Some day...

   (Oh,) deep in my heart
   I do believe
   We'll walk hand in hand
   Some day

   We shall live in peace
   We shall live in peace
   We shall live in peace
   Some day...

   (Oh,) deep in my heart
   I do believe
   We shall live in peace
   Some day

   We are not afraid
   We are not afraid
   We are not afraid
   Some day...

   (Oh,) deep in my heart
   I do believe
   We are not afraid
   Some day











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        Do you see the pattern?
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           ANOTHER SONG

2. Write a procedure to print the lyrics
   of the song "The wheels on the bus", i.e.,

   The wheels on the bus go round and round
   round and round
   round and round
   The wheels on the bus go round and round
   All 'round the town.

   The whipers on the bus go swish, swish, swish
   swish, swish, swish
   swish, swish, swish
   The whipers on the bus go swish, swish, swish
   All 'round the town.

   The people on the bus go up and down
   up and down
   up and down
   The people on the bus go up and down
   All 'round the town.









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        What's the pattern of this one?
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      99 BOTTLES OF BEER ON THE WALL

3. Write a procedure bottlesofbeer(n)
   to print the nth lyric of the song 
   "99 Bottles of Beer on the Wall", i.e.,
   for n == 99:

   99 bottles of beer on the wall,
   99 bottles of beer!
   You take one down, pass it around,
   98 bottles of beer on the wall!








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             SALES TOTAL

4. Write a procedure sales_total()
   to prompt for and read
   the prices of 3 pairs of shoes, and print
   the sum of the prices with a
   6% sales tax added. Example
   (with user inputs to right of '?'
   on lines 1-3):


   1st price? 64.99
   2nd price? 73.95
   3rd price? 102.00
   Sales tax: $14.46
   Total price: $138.94











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