''' Purpose: consider string replace() functions
'''

text = input( "Enter text: " )

s = input( "Enter substring (s): " )

r = input( "Enter substring (r): " )

print()

# get version of text with occurrences of s replaced with r

modified_text = text.replace( s, r )
# replace( x, y )
#   x is the substring we want to replace
#   y is the substring we want to take the place of x
# look for all characters in s in the string text, then replace them with the characters in r
# looks for s EXACTLY!
# if r is an empty string '' --> puts 'nothing' where all of s is


print( "text.replace( s, r ):", modified_text, "   # text's s's replaced with r's" )