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: 5513 @ 1221 @ 8910 @ 8422

A: 24066
****
Q: 634 # 6766 # 1458 # 4376 @ 9425

A: -2541
****
Q: 4970 @ 8711 @ 6188

A:
19869
****