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: 2095 # 5428 @ 3055 @ 1752 @ 2919 # 3592 # 7407

Output: -6606


Input: Consider Input: 2495 @ 7683 @ 706 @ 5746 @ 7998 @ 5941

Output: 30569


Input: Consider Input: 4588 # 3423 @ 6635 @ 4237 @ 8244 # 3073


Output: 17208