Thunno, \$ 7 \log_{256}(96) \approx \$ 5\$ 6 \log_{256}(96) \approx \$ 4.7694 bytes
z+19Ad
Takes in the numbers as digit arrays.
Thunno, \$ 7 \log_{256}(96) \approx \$ 5.76 bytes
e19AdES
Takes in the numbers as digit arrays.
ExplanationExplanations
z+19Ad # Implicit input
z+ # Add the digits in the same positions together
Ad # Convert from
19 # base-19
e19AdES # Implicit input
e E # Map over the input:
Ad # Convert from
19 # base-19
S # Sum the list
# Implicit output