#!/usr/bin/env python
str1 = "Hello"
print str1[0]
str2 = "Hello"
str3 = "HELLO"
print "str1 equals str2 :" , str1 == str2
print "str1 equals str3 :" , str1 == str3
print str1[0]
first = "Hello "
second = "world"
third = first + second
print third
print len(str1)
print str1.find("ll")
print str1.isdigit()
arr = ["1","2","3"]
print "".join(arr)
print str1.replace("ll", "LL")
print str1.lower()
print str1.upper()
str2 = "johny     johny yes papa"
print str2.split()