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: 9731 # 5427 @ 606 @ 9242 # 5166 @ 659 @ 5124 @ 2482 # 2031

Output: 15220


Input: Consider Input: 4264 # 4438 @ 3871 @ 7585 # 540 # 3455 # 6016

Output: 1271


Input: Consider Input: 6055 # 1440 # 3272 # 5643 @ 150 @ 7658 # 8655 @ 8463 # 8156


Output: -4840