''' Purpose: separately prompt for a string s and a list of integers numbers.
    The program displays the string formed by using numbers as indices into s.
'''

# get the code phrase that contains hidden message
reply = input( "Enter code phrase: " )

print()

# clean up reply to get code phrase with no leading or trailing whitespace
code_phrase = ...

# print the code phrase
print( "Code phrase=", code_phrase )

print()

# get the list of indices (as string) for peeking into code phrase
reply = input( "Enter indices for looking into code phrase: " )

print()

# convert reply into a list of numeric strings
numeric_strings = ...

# build one-by-one the list of indices out of the numeric strings 
indices = ...

#for ...

# print the list of indices
print( "Indices:", indices )

print()

# build secret message (string) by peeking into code phrase using the
# indices one-by-one
message = ...

#for ...

# print secret message
print( "Secret message:", message )