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

Output: 11333


Input: Consider Input: 5110 # 9803 @ 2485 # 1678

Output: -3886


Input: Consider Input: 7589 @ 4863 @ 7930 @ 6858 @ 7606 # 3193 # 3679 # 2569 # 1394


Output: 24011