#im_Mutabble - can not be chagable (unchangable)
#Mutable    - cnangable

# count will give count of the string

lb1 = "Happy Birthday"
print (lb1.lower())
print (lb1.upper())
print (lb1)

lb1=lb1.upper()
print (lb1)
print (lb1.capitalize())
print (lb1.title())
print (lb1.islower())
print (lb1)
print ((lb1.isupper()))
print (lb1.istitle())
print (lb1.isalpha())
a1="test"
print (a1)
print (a1.isalpha())
print (a1.isdigit())
a2="abc123"
print (a2.isalnum())
a3="abc123!"
print(a3.isalnum())

a="arunprasanna"
print (a.count("n"))


name="hello"
print (name.count("e"))

text = "happy birthday"
print (text.count("n"))
print (text.count("day"))


