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: 4899 # 3034 @ 3351 @ 7952 @ 4527 # 2700 # 3143 @ 3642 # 2445

Output: 13049


Input: Consider Input: 4612 @ 9447 # 3444 @ 1269

Output: 11884


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


Output: 30698