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:
1188 @ 3127 @ 964 # 79 # 4554 @ 4344 @ 8024

Ex Output:
13014

Ex Input:
8041 @ 762 @ 8091 @ 6500

Ex Output:
23394

Ex Input:
6501 # 6708 # 7831 # 3189 @ 8042 # 1700 # 8825 @ 8989 # 5167

Ex Output:
-9888