#! /usr/bin/python

# print("base64 by SNA")
import base64
import sys

# print(sys.argv)

if(len(sys.argv) != 3 or sys.argv[1] == '-h'):
    print("Usage: b64 {-e|-d} [-h] \"<string>\"")
    print("-e Encode")
    print("-d Decode")
    print("--help Prints this help menu")
    exit(-1)

path = sys.argv[0]
option = sys.argv[1]
data = sys.argv[2]

if option == "-d":
    print(base64.b64decode(data.encode()).decode())
elif option == "-e":
    print(base64.b64encode(data.encode()).decode())