if you add all the numbers on your mobile phone , what is the answer ?
0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 are in your mobile phone . therefore 0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45 answer is a
multiply(divide(add(const_1, subtract(const_10, const_1)), const_2), subtract(const_10, const_1))