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: 8129 # 5764 @ 7961 # 2052 @ 6379

Output: 14653


Input: Consider Input: 8045 @ 7755 # 7077 # 209 @ 8324 @ 9768 # 6169 @ 4387

Output: 24824


Input: Consider Input: 2628 # 8354 # 7820 @ 7450 # 7137 @ 6368 # 3511 # 3700 # 6987


Output: -21063