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

9807 @ 9345 # 5133 # 8042 @ 1499 # 8153 # 638
-1315

2984 # 596 # 8941 @ 4235 @ 5264 @ 351 # 3797 @ 7168 # 55
6613

5331 # 1694 @ 8913 # 9407 # 5544 @ 4502 # 3967 # 8557

-10423