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: 6050 # 5266 # 3005

Output: -2221


Input: Consider Input: 1192 # 5752 # 5907 # 2119 # 9792 @ 917 @ 8428 # 6072 @ 592

Output: -18513


Input: Consider Input: 3298 @ 1140 @ 3407 # 8200 # 7383 # 6043 @ 5264


Output: -8517