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

Example Input: 3309 @ 2855 @ 8458 # 3671 # 4410 # 6229 # 4661 # 2777
Example Output: -7126

Example Input: 7806 # 6020 # 4616 @ 3594 # 6312 # 5362 # 4403 @ 3666
Example Output: -11647

Example Input: 4969 @ 3432 # 6232 @ 4470 # 3898 @ 2657 @ 8518 # 7843
Example Output:
6073