import math

def printnumbers():

numbers = []

k=1

for number in range(2000,3201)[::k]:

if (number%7 is 0) and (number%5 is not 0):

numbers.append(number)

if k is not 7:

k=7;

print(numbers)

def fact(n):

fa = 1

for d in range(n,1,-1):

fa = fa * d

return fa;

#n = int(input('Number --> '))

#print(fact(n))

#Problem 3, asks to print a dictionary where values are square of the key. n is input.

def sqdic(n):

return {x: x*x for x in range(1,n+1)}

def sqdic2(n):

d = {}

for x in range(1,n+1):

d[x] = x*x;

return d

#Problem 4, str split and rsplit methods use

def splitthestr(s):

print(type(s))

slist = s.split(',')

print(slist)

print(tuple(slist))

#sa = input("give numbers")

#splitthestr(sa)

class TestClass:

def __init__(self, name):

self.name = name;

def getwelcomemessage(self):

print('hello {}'.format(self.name))

#tc = TestClass("Jubayer")

#tc.getwelcomemessage()

# problem 6

def calculateQ(D):

C = 50

H = 30

Q = math.sqrt((2*C*D)/H)

return math.floor(Q)

def getnumbers(st):

l = st.split(',')

nl = [int(x) for x in l]

return nl

#s = input("--> Numbers: ")

#l = [calculateQ(x) for x in getnumbers(s)]

#l = map(str, l)

#print (','.join(l))

#problem 7