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: 2611 @ 6783 @ 8407 # 5813 @ 4138

Output: 16126


Input: Consider Input: 9049 # 6438 @ 8686 # 910 # 3586

Output: 6801


Input: Consider Input: 5705 @ 2289 @ 7088 @ 3793 @ 567 # 3129 # 3987 @ 1448 # 7306


Output: 6468