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: 7016 @ 5245 # 3568 # 3445 # 5282 # 7568

Output: -7602


Input: Consider Input: 1439 @ 4809 @ 6755 # 4840 @ 491 @ 9049 @ 8905 @ 8915

Output: 35523


Input: Consider Input: 8798 # 6887 # 9478 # 7713 @ 8512 @ 7926 # 8604 @ 2947 @ 7573


Output: 3074