## HW2 
## Write your name.

print('-------------------------------------------------------------')
print('1. Manipulating Numbers')
print('-------------------------------------------------------------')
print()

10+3*5           ## Line A
x = (1+4)*3      ## Line B
20+x             ## Line C
y = x            ## Line D
z = 2*x          ## Line E
x = x+1.0        ## Line F
x**y             ## Line G
x = x + y + z    ## Line H
z = (x-1)/y      ## Line I

## 1.1: Replace '<STRING>' with the string 
## 'Assignment' or 'Expression'.

## 1.2. Replace '<VALS>' with the values of 
## x, y, and z. Be careful about which variables are 
## ints and which are floats.

print('After the <STRING> in line A, x/y/z do not exist.')
print('After the <STRING> in line B, x = 15 and y/z do not exist.')
print('After the <STRING> in line C, <VALS>.')
print('After the <STRING> in line D, <VALS>.')
print('After the <STRING> in line E, <VALS>.')
print('After the <STRING> in line F, <VALS>.')
print('After the <STRING> in line G, <VALS>.')
print('After the <STRING> in line H, <VALS>.')
print('After the <STRING> in line I, x = 61.0, y = 15, and z = 4.0.')
print()

print('-------------------------------------------------------------')
print('2. Lists')
print('-------------------------------------------------------------')

## 2.1.  Print the value in each variable name using ONLY indices
## into numList.
numList = [3,2,7,5]

## Here is an example.
shouldBe1 = numList[0]-numList[1]
print('An example: shouldBe1 =',shouldBe1)

## Replace the 0's with expressions that only use indices and operators.
shouldBe4 = 0
print('shouldBe4 =',shouldBe4)

shouldBe10 = 0
print('shouldBe10 =',shouldBe10)

shouldBe20 = 0
print('shouldBe20 =',shouldBe20)

shouldBe25 = 0
print('shouldBe25 =',shouldBe25)

## 2.2. Put the classes you are currently taking into the
## mySchedule variable.
mySchedule = ['bio131']

## 2.2(a) Print the length of mySchedule

## 2.2(b) Print the first and last items of mySchedule

## 2.2(c) Try the following line: print(mySchedule[len(mySchedule)]). 
## What happens? Write your answer in the comments.

## 2.3.  The range() function.
print()
print('Practice with the range() function.')

## 2.3(a) evaluate the following expressions.
#print(list(range(5)))
#print(list(range(10)))
#print(list(range(1)))

## 2.3(b) Use the range() function to print the indices of mySchedule.

print()
print('-------------------------------------------------------------')
print('3. FOR Loops')
print('-------------------------------------------------------------')
print()

## 3.1. Print the elements of numList:

## 3.2. Print the elements of mySchedule:

## 3.3. Use a for loop to print the index of each element of mySchedule.
## Modify the code to print the value and the length as well.

## 3.4. Use a for loop to count the number of elements.
numClasses = 0
## <WRITE FOR LOOP HERE; UPDATE numClasses>
print('numClasses:',numClasses)

print('-------------------------------------------------------------')
print('4. Write a Change Counter')
print('-------------------------------------------------------------')

## coinDenominations contains four values: one each for a
## penny, a nickel, a dime, and a quarter.
coinDenominations = [1,5,10,25]
print('coinDenominations:',coinDenominations)

## numberOfCoins contains four values: the number of pennies, nickels,
## dimes, and quarters you find in your pocket.  You may have 0 coins of some
## denomination.
numberOfCoins = [3,1,0,2]
print('numberOfCoins',numberOfCoins)

## dollarAmount is the number of dollars you have.
dollarAmount = 0

## <WRITE FOR LOOP HERE TO CALCULATE DOLLAR AMOUNT>

## print the dollar amount.
print('The dollar amount is: $',dollarAmount)

print('-------------------------------------------------------------')
print('5. String Slices')
print('-------------------------------------------------------------')

## Evaluate the lines from the instructions.
stringOfNumbers = '0123456789'
print(stringOfNumbers)

print('-------------------------------------------------------------')
print('6. Hypothetical Gene')
print('-------------------------------------------------------------')

hypotheticalgene = 'eeeeeeeeeeeiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiieeeeeee'
print('\nhypothetical gene:',hypotheticalgene)

## These variables represent the index of the start of each exon, the 
## intron, and the length of the gene.
exon1start = 0
intron1start = 11
exon2start = 43
genelen = len(hypotheticalgene)

## 6.1. Print the lengths of the exons using the start and genelen variables

## 6.2. Store strings corresponding to the exons and the intron.
## Assign variables to strings that correspond to exon1, exon2, and the intron.

## 6.3.  Print the length of hypotheticalgene and the sum of the exons + intron.

#print('-------------------------------------------------------------')
#print('7. Extra Exercises (Optional)')
#print('-------------------------------------------------------------')

## Exon Starts and Intron Starts as lists


## Exon/Intron Starts for the SRC Gene
SRCexonstarts = [0,1546,3471,11291,11570,13558,15095,17511,18998,19831,20145,20567]
SRCintronstarts = [183,1800,3571,11390,11674,13708,15251,17691,19075,19985,20277,22829]


## When you're done, uncomment the line below.
#print('Done with HW2!')
print()
print('When you\'re done, write the approximate amount of time spent in the comments.')
## Approximate Time Spent: <NUMBER>