Write a program that reads a sentence from the keyboard. The sentence has been encrypted so that the message consists of only the first five characters with even-numbered indexes. All other characters should be discarded. Decrypt the sentence and output the result. For example, if the user inputs “Hiejlzl3ow”, your output should be Hello.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Write a program that reads a sentence from the keyboard. The sentence has been encrypted so that the message consists of only the first five characters with even-numbered indexes. All other characters should be discarded. Decrypt the sentence and output the result. For example, if the user inputs “Hiejlzl3ow”, your output should be Hello.

Expert Solution
Step 1

Python program:

# function for sentence 
def sentence(str):
    
  # for storing the decrypt result  
  result = "" 
  for i in range(len(str)):
    
    # encrypted sentence consists first five characters with even number indexes  
    if i % 2 == 0:
      result = result + str[i]
  return result

# Enter the string
str = input('Enter the string: ')

# display the decrypted result of given string
print(sentence(str))

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