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: 2342 # 5338 @ 345 @ 9010 @ 5234 @ 9613

Output: 21206


Input: Consider Input: 2560 @ 144 @ 6785 @ 572 # 5190 @ 1929

Output: 6800


Input: Consider Input: 8200 @ 3816 @ 6243 @ 9920 # 2716


Output: 25463