Clarify Replace instructions

Author: phrdang

1_beginner/chapter7/practice/replace.py

@@ -1,12 +1,14 @@
 """
 Replace
 
-Write a Python program to print a string
-from a given string where all occurrences
-of its first char have been changed to '$',
+Write a Python program that asks the user for a string
+and then prints a version of that string
+where all occurrences of its first char
+have been changed to '$',
 except the first char itself.
-Sample String : 'restart'
-Expected Result : 'resta$t'
+
+Sample Input: 'restart'
+Expected Output: 'resta$t'
 
 Adapted from W3Resource, problem 4:
 https://www.w3resource.com/python-exercises/string/

1_beginner/chapter7/solutions/replace.py

@@ -1,13 +1,14 @@
 """
 Replace
 
-Write a Python program to print a string
-from a given string where all occurrences
-of its first char have been changed to '$',
+Write a Python program that asks the user for a string
+and then prints a version of that string
+where all occurrences of its first char
+have been changed to '$',
 except the first char itself.
 
-Sample String: 'restart'
-Expected Result: 'resta$t'
+Sample Input: 'restart'
+Expected Output: 'resta$t'
 
 Adapted from W3Resource, problem 4:
 https://www.w3resource.com/python-exercises/string/