# Author:  James Tam
# Version: March 23 2010
  
# On a line-by-line basis the program reads from a file called "input.txt".
# Each character of the line will be prefaced by an index number and then displayed
# onscreen all on one line.


# Open file for reading, confirm file with user.
inputFile = open ("input.txt", "r")
  
   
# While we haven't read past the end of the file continue reading from
# it.
for line in inputFile:
    i = 0
    # The variable ch will start at the first character in the string "line" and
    # iterate through the string up to and including the last character.
    for ch in line: 
        # Each character in the string "line" is given an index value depending
        # upon it's position (first is zero, second is one etc.) The index and the
        # character are displayed onscreen.
        print i, ch,

        # Increase the index in anticipation of reading the next character from line.
        i = i + 1
    print

# Finished writing to file, provide feedback to user and close file.
print "Completed reading of file input.txt"
inputFile.close()