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

Input: Consider Input: 932 # 7028 @ 5402 # 9015 @ 2110

Output: -7599


Input: Consider Input: 3337 @ 9906 @ 9733 # 853 @ 5075 # 2064 @ 9450 # 3886

Output: 30698


Input: Consider Input: 1163 # 3809 @ 5176 # 2533 @ 4885 # 8890 # 506 @ 5874


Output: 1360