s = 'Python is great!'
print (s)
s = "Python is great!"
print (s)
s = '''Python is great!'''
print (s)
s = """Python is great!"""
print (s)

sentence = 'Python is the\
most popular programming\
language in these days.'
print (sentence)

a = 'say "hello" to mom'
b = "say 'hello' to mom"
c = '''say 'hello' to "mom"'''
print (a)
print (b)
print (c)

#letter to Alice
print ('''Dear Alice,

How are you?

Say hello to your parents.

Sincerely,
Bob''')
