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

Q: 6340 # 5642 @ 8051 # 3877 # 2824 # 3105 # 9957 @ 9874 # 6399

A: -7539
****
Q: 2342 # 5338 @ 345 @ 9010 @ 5234 @ 9613

A: 21206
****
Q: 4395 @ 2923 # 9011 # 7005 @ 2516 @ 3120 @ 7474 @ 7721 # 1173

A:
10960
****