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: 7065 # 7713 # 7473 # 664 # 8030

Output: -16815


Input: Consider Input: 5191 # 7400 @ 7319 # 5932 @ 662 @ 1546

Output: 1386


Input: Consider Input: 362 # 8011 @ 3174 # 2170 # 761


Output: -7406