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

Ex Input:
3765 @ 8333 @ 5726

Ex Output:
17824


Ex Input:
7775 @ 8190 # 2579 @ 1003

Ex Output:
14389


Ex Input:
1700 @ 2385 @ 7127 @ 5791 @ 8786 @ 6326 @ 1332 @ 6700 # 4957

Ex Output:

35190