"""

if..elif..else  is the format of nested condition and inside if follows if..elif..else condition
nested means condition and inside condition

The syntax of the nested if...elif...else construct:

if expression1:   #Here if condition is True then it will go next line like statement and so on
   statement(s)
   if expression2:
      statement(s)
   elif expression3:
      statement(s)
   else:
      statement(s)
elif expression4:    #in above if condition is false it will come to else statement and execute
   statement(s)
else:                #Here if and elif condition is false then it will come to else statement and execute
   statement(s)
-----------------------------------------------------------------

if expression1:
   statement(s)
   if expression2:
      statement(s)
elif expression4:
   statement(s)
    if expression2:
    statement(s)
       if expression2:
      statement(s)
   elif expression3:
      statement(s)
   else:
      statement(s)

else:
   statement(s)

"""