In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer

Input: Consider Input: 932 # 7028 @ 5402 # 9015 @ 2110

Output: -7599


Input: Consider Input: 3586 # 8254 # 4130 # 5426

Output: -14224


Input: Consider Input: 5971 @ 6251 @ 6010 # 5861 @ 2308 @ 7415


Output: 22094