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: 5211 # 3266 @ 3042 @ 254 # 7823 @ 4298 # 8042 # 1629 # 6738

Output: -14693


Input: Consider Input: 7295 @ 8477 @ 8646 @ 3487 # 114 # 9184

Output: 18607


Input: Consider Input: 8088 @ 4033 # 1981 @ 896 # 4648 @ 3965 @ 5083 # 9835 @ 6132


Output: 11733