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: 3393 # 1959 # 4338 # 8197 @ 3993 # 7625 # 7892

Output: -22625


Input: Consider Input: 1516 # 4681 # 225 # 3393 @ 1212 @ 367

Output: -5204


Input: Consider Input: 9790 # 1759 @ 266 @ 2561


Output: 10858


