import sys
word = "".join([sys.argv[1][i:i+2][::-1] for i in range(0, len(word), 2)])
print(word)
d001dfff760d9c8a130f65bf6f67a8036ced2ad4
<mask token>

<mask token>
print(word)

<mask token>
word = ''.join([sys.argv[1][i:i + 2][::-1] for i in range(0, len(word), 2)])
print(word)

import sys
word = ''.join([sys.argv[1][i:i + 2][::-1] for i in range(0, len(word), 2)])
print(word)

import sys
word = "".join([sys.argv[1][i:i+2][::-1] for i in range(0, len(word), 2)])
print(word)