\"\"

\

The expression is \"\".

\

\"\"      (Substitute \"\")

\

\"\"           (Additive modulus of \"\" is 12 and 12 units from origin)

\

\"\"              (Additive modulus of \"\" is 4 and 4 units from origin)

\

\"\"                    (Add: \"\")\"\"

\

The value is 16.