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: 4428 # 2569 @ 338 # 967 @ 2206

Output: 3436


Input: Consider Input: 1982 # 4772 # 2392 # 1023 # 9072 @ 1042 @ 2606 # 2557 @ 1145

Output: -13041


Input: Consider Input: 1500 @ 4571 @ 5197 @ 7382 @ 2912 @ 3893


Output: 25455