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: 3586 # 8254 # 4130 # 5426

Output: -14224


Input: Consider Input: 9938 # 267 # 6696 # 8186 # 5729 # 8517 # 6331 @ 7607

Output: -18181


Input: Consider Input: 8942 @ 8452 @ 4646 # 3542 # 1792 @ 5656 @ 8632 @ 834


Output: 31828