Instructions: 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: 4462 @ 6234 @ 8715 @ 6478 @ 4140 # 5122 # 4291 # 8187
Output:
12429