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: 7944 # 4957 # 8255 @ 684
Example Output: -4584

Example Input: 1294 # 4752 # 8113 @ 9201 @ 8582 # 7189 @ 2849
Example Output: 1872

Example Input: 2755 @ 6253 @ 6907 # 5501 # 363 # 9812
Example Output:
239