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: 3393 # 1959 # 4338 # 8197 @ 3993 # 7625 # 7892

Output: -22625


Input: Consider Input: 636 # 9939 @ 3769 @ 8322 # 3343 @ 8680 # 1129 # 9882 # 3400

Output: -6286


Input: Consider Input: 7046 # 2672 @ 4644 # 5206 @ 7252 @ 9785


Output: 20849