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: 4364 # 2781 # 7674 # 4801 @ 898 @ 7562 @ 5925 @ 648 @ 7768

Output: 11909

Input: Consider Input: 1614 # 4521 @ 7508 # 7726 @ 6176 @ 8975 # 693

Output: 11333

Input: Consider Input: 8586 # 9377 # 4055 # 4701
Output: -9547