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: 3276 # 8656 # 2580 @ 7528 @ 344 @ 6066 # 9323 # 6974 # 6635

Output: -16954


Input: Consider Input: 3586 # 8254 # 4130 # 5426

Output: -14224


Input: Consider Input: 9274 # 5611 @ 8340 # 6157


Output: 5846