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: 837 @ 118 @ 1503 # 3288 @ 6669 # 1394

A: 4445
****
Q: 4688 # 4301 # 9301 # 7246 # 6377 @ 8027 @ 425 @ 3557

A: -10528
****
Q: 6800 @ 2564 @ 8444 @ 1912

A:
19720
****