import sys
digit_string = sys.argv[1]
s = 0
for d in digit_string:
    s += int(d)
print(s)

180e8aed0d47d51d415e1d61835f292503718567
<mask token>

<mask token>
for d in digit_string:
    s += int(d)
print(s)

<mask token>
digit_string = sys.argv[1]
s = 0
for d in digit_string:
    s += int(d)
print(s)

import sys
digit_string = sys.argv[1]
s = 0
for d in digit_string:
    s += int(d)
print(s)
