In this task you will be given an arithmetic operation and you have to find its answer. The symbols of operators '+' and '-' has been swapped i.e you need to perform subtraction when you see a '+' symbol and  addition in case of '-' symbol.

Input: Consider Input: 7451 + 2964 + 1609 - 9543 - 679 + 381 - 9788 - 8125

Output: 30632


Input: Consider Input: 496 + 5072 + 6259 + 1493 + 4824 + 2052 + 4751 - 8038

Output: -15917


Input: Consider Input: 1111 + 553 + 4957


Output: -4399