how many digits are in ( 8 × 10 ^ 12 ) ( 10 × 10 ^ 9 ) ?
"the question simplfies to ( 8 × 10 ^ 12 ) ( 10 ^ 10 ) = > 8 * 10 ^ 22 = > will contain 22 zeros + 1 digit 8 = > 23 ans b"
add(10, add(const_3, const_4))