import string

#create arrays of letters
def getAlphaList():
    alphabet = string.ascii_lowercase
    outList = textToList(alphabet)
    return outList

def textToList(aString):
    outList = []
    for i in range(0, len(aString)):
        outList.append(aString[i])
    return outList

alphaString = getAlphaList()
revString = getAlphaList()
revString.reverse()

#get the phrase to encode
theString = input("Enter the string to encode: ").lower()

outString = ""

#decode
for letter in theString:
    i = 0
    if letter not in alphaString:
        outString = outString + letter
    else:
        for l in alphaString:
            if letter == alphaString[i]:
                outString = outString + revString[i]
            i = i + 1

print(outString)