# GGearing
# Simple encryption script for text
# This was one my first versions of this script
# 09/07/2017
from __future__ import print_function

import math

try:
 input = raw_input
except NameError:
 pass

key = int(math.pi * 1e14)
text = input("Enter text: ")
values = reverse = []


def encryptChar(target):
 # encrytion algorithm
 target = (((target + 42) * key) - 449)
 return target


def decryptChar(target):
 target = (((target + 449) / key) - 42)
 return target


def encrypt(input_text):
 col_values = []
 for inp in input_text:
 current = ord(inp)
 current = encryptChar(current)
 col_values.append(current)
 return col_values


def decrypt(enc_text):
 col_values = []
 for enc in enc_text:
 current = int(decryptChar(enc))
 current = chr(current)
 col_values.append(current)
 return col_values


def readAndDecrypt(filename):
 file = open(filename, "r")
 data = file.read()
 datalistint = []
 actualdata = []
 datalist = data.split(" ")
 datalist.remove('')
 datalistint = [float(data) for data in datalist]
 for data in datalist:
 current1 = int(decryptChar(data))
 current1 = chr(current1)
 actualdata.append(current1)
 file.close()
 return actualdata


def readAndEncrypt(filename):
 file = open(filename, "r")
 data = file.read()
 datalist = list(data)
 encrypted_list = list()
 encrypted_list_str = list()
 for data in datalist:
 current = ord(data)
 current = encryptChar(current)
 encrypted_list.append(current)
 file.close()
 return encrypted_list


def readAndEncryptAndSave(inp_file, out_file):
 enc_list = readAndEncrypt(inp_file)
 output = open(out_file, "w")
 for enc in enc_list:
 output.write(str(enc) + " ")
 output.close()


def readAndDecryptAndSave(inp_file, out_file):
 dec_list = readAndDecrypt(inp_file)
 output = open(out_file, "w")
 for dec in dec_list:
 output.write(str(dec))
 output.close()


# encryption
for t in text:
 current = ord(t)
 current = encryptChar(current)
 values.append(current)

# decryption
for v in values:
 current = int(decryptChar(v))
 current = chr(current)
 reverse.append(current)
print(reverse)

# saves encrypted in txt file
output = open("encrypted.txt", "w")
for v in values:
 output.write(str(v) + " ")
output.close()

# read and decrypts
print(readAndDecrypt("encrypted.txt"))