key = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!$%&+-.=?^{}"

encode_tuple = tuple(list(key))

decode_dict = {}

for i in range(74):

decode_dict[key[i]] = i

def decode_string(char_string):

result = 0

for char in char_string:

result *= 74

result += decode_dict[char]

return result

def encode_number(num):

if num == 0: return "0"

result = ""

counter = 0

while num >= (74 ** counter):

result += key[num // (74 ** counter) % 74]

counter += 1

return result[::-1]

if __name__ == "__main__":

print("1) Decoder")

print("2) Encoder")

inp = input("Choose: ")

if inp == "1":

print("Decoder chosen")

string = input("Write/paste string here: ")

string_dec = decode_string(string)

print("String decoded")

print(f"The original string is {string}")

print(f"The decoded number is {string_dec}")

elif inp == "2":

print("Encoder chosen")

number = input("Write/paste number here: ")

number_enc = encode_number(int(number))

print("Number encoded")

print(f"The original number is {number}")

print(f"The encoded string is {number_enc}")

else:

print("You have chosen something that's not in the options!")