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: 4688 # 4301 # 9301 # 7246 # 6377 @ 8027 @ 425 @ 3557

A: -10528
****
Q: 331 # 9967 @ 21 @ 480 # 3926 @ 8770 @ 5909 @ 6288 # 1226

A: 6680
****
Q: 4027 # 6440 # 4663 # 8485 @ 1119 # 8445 # 6776 @ 1240

A:
-28423
****