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

6277 # 2029 # 4158 @ 5412 # 6845 # 6694 @ 5432
-2605

415 @ 1312 # 9916 @ 9168 @ 1911
2890

86 # 2166 # 8519 # 7184 # 362 # 2203 @ 1579 # 1133 @ 3978

-15924