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: 531 # 4183 # 6445 # 8517 @ 4076 # 9925

Output: -24463


Input: Consider Input: 9007 @ 6876 # 2672 # 3947 @ 6822 @ 806 @ 4508 @ 5112

Output: 26512


Input: Consider Input: 5237 # 6567 # 5396


Output: -6726