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
--------
Question: 2787 @ 3800 # 142 # 7750 # 8581 @ 5447 @ 1512 @ 6550

Answer: 3623


Question: 6472 # 6421 @ 7649 @ 4005

Answer: 11705


Question: 9130 # 4858 @ 6306 # 7089 # 6152 # 3935 # 2121

Answer:
-8719