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

[EX Q]: 9930 # 7864 @ 6797 # 6092 @ 1146 @ 1388 # 8545 # 9163
[EX A]: -12403

[EX Q]: 5992 @ 7637 # 7427 @ 1102 @ 677 @ 9685 @ 6972
[EX A]: 24638

[EX Q]: 6488 @ 2585 @ 4791
[EX A]:
13864