the sum of two consecutive integers is 21 . find the numbers .
"n + ( n + 1 ) = 21 2 n + 1 = 21 2 n = 20 n = 10 answer : c"
add(add(power(add(add(divide(subtract(subtract(21, const_10), const_2), const_4), const_2), const_2), const_2), power(add(add(add(divide(subtract(subtract(21, const_10), const_2), const_4), const_2), const_2), const_2), const_2)), add(power(divide(subtract(subtract(21, const_10), const_2), const_4), const_2), power(add(divide(subtract(subtract(21, const_10), const_2), const_4), const_2), const_2)))