#like in C, the first character of a string has subscript (index) 0.
#There is no separate character type; a character is simply a string of size one.
#Like in Icon, substrings can be specified with the slice notation:
#two indices separated by a colon.
word = "Hello world"
print word[4]
print word[0:2]
print word[2:4]
print word[:2] # The first two characters
print word[2:] # Everything except the first two characters
print 'x' + word[1:]
print 'Splat' + word[4]