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: 2269 # 7857 @ 1906 @ 1098 # 6308 # 1142 @ 2063
Example Output: -7971

Example Input: 3970 # 8486 # 9402 # 8030 @ 4724 @ 8858
Example Output: -8366

Example Input: 7208 @ 2074 @ 2796 # 8783
Example Output:
3295