what is the sum of all digits for the number 10 ^ 26 - 51 ?
"10 ^ 26 is a 27 - digit number : 1 followed by 26 zeros . 10 ^ 26 - 51 is a 26 - digit number : 24 9 ' s and 49 at the end . the sum of the digits is 24 * 9 + 4 + 9 = 229 . the answer is d ."
multiply(add(divide(subtract(subtract(26, 10), const_2), const_2), 10), divide(add(subtract(26, 10), const_2), const_2))