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: 9546 @ 5515 @ 6740 # 2069 # 921 # 9110 # 5067 # 3917 # 6434

Output: -5717


Input: Consider Input: 6775 @ 249 @ 1171 @ 3376 # 7127

Output: 4444


Input: Consider Input: 2860 # 5355 @ 9355 @ 2235 @ 7385 # 3497 # 2423 # 1704 # 4434


Output: 4422