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: 3074 @ 9793 # 6587 @ 1399

Output: 7679


Input: Consider Input: 1077 @ 2451 @ 9445 @ 1297 @ 2639 # 27 # 9331 @ 8713

Output: 16264


Input: Consider Input: 6465 @ 9602 @ 6075 # 4788 # 3225 # 7589 @ 8471 # 5040 # 217


Output: 9754