''' Purpose: Experience the thrill of random generation and list examination

    Task: Prompt and get three integers s, n, and d from its user (in that
          order). Use integer s as a seed to the Python random number
          generator. Then print n octal digits (base 8 digits) line by
          line by line. Then print the number of generated occurrences of d.
          There should be no other output

    Checker:

'''

# needed module
import random

#  Get the input 

reply = input( 'Enter three numbers: ' )

print()

#  Convert the input into the integers s, n, d
s, n, d = reply.split()

s, n, d = int( s ), int( n ), int( d )
# s = seed
# n = how many numbers we need to generate
# d = value we're interested in --> need to find how many times this value occurs
# in a list of n octal numbers

# octal numbers = numbers in range 0 - 7

#  Set the seed for generating random values 
random.seed( s )
# when we set the seed, the machine still chooses random things
# but we get the same random choices will occur every time we run the program
# so it's kinda predictable randomness (at least after the 1st time you run the program)

# Generate n random octal numbers and store them in a list

# Start by initializing the list holder
octals = []

# One-by-one add n octal numbers to the list holder
for i in range( 0, n ) :
    # each time through, generate a random octal number and add to octals list
    digit = random.randrange( 0, 8 )   # range = [0, 8) - octals = base 8 number; includes 0 through 7
    # since we set a seed, we will get the same list every time we run if we give it the same seed
    # if s is a different thing, our list will be different

    # to use random.choice( x ), we need a list: x = [0, 1, 2, 3, 4, 5, 6, 7] --> too long to type
    # using randrange() is better

    octals.append( digit )

# Print the list
print( "octal digit list:", octals )

print()

# Determine number of generated octal values equal to d and print
# how many times d appears in the list octals
number_of_occurrences_of_d_in_octals = octals.count( d )

print( "number of times value", d, "in list:", number_of_occurrences_of_d_in_octals )