TASK DEFINITION: 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
PROBLEM: 331 # 9967 @ 21 @ 480 # 3926 @ 8770 @ 5909 @ 6288 # 1226

SOLUTION: 6680

PROBLEM: 9938 # 267 # 6696 # 8186 # 5729 # 8517 # 6331 @ 7607

SOLUTION: -18181

PROBLEM: 8231 # 3752 # 4947 # 1052 @ 8048 # 977 # 8640 @ 6155

SOLUTION:
3066