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: 1122 @ 3359 @ 4856 # 8802 @ 600 @ 3512 # 4067 @ 6320 @ 711

Output: 7611


Input: Consider Input: 4460 @ 9143 # 6720 # 8379 @ 1636 # 6526

Output: -6386


Input: Consider Input: 6543 @ 755 @ 8452 # 380


Output: 15370