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: 9786 @ 7240 # 8099 @ 100 @ 4573 @ 5982 @ 9270 @ 9911 # 8249

Output: 30514


Input: Consider Input: 6267 @ 3304 @ 9078 @ 9734 # 2947 # 4223 @ 4824 # 3116

Output: 22921


Input: Consider Input: 5090 @ 2502 @ 9030 @ 8516 # 4106


Output: 21032