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: 5347 # 326 # 6112 # 4655 @ 2124

Output: -3622


Input: Consider Input: 7272 @ 8958 # 7231 @ 6616

Output: 15615


Input: Consider Input: 508 @ 8922 @ 863 # 9003 # 8886 # 5071 # 1017 # 9140 # 474


Output: -23298