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: 6744 # 8579 # 1271 @ 9372 @ 5898
Example Output: 12164

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

Example Input: 4068 @ 7949 @ 6952 # 2495 # 1000 # 8628
Example Output:
6846