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: 5335 + 8307 + 4845 + 6853 - 9847 + 7289

Output: -12112


Input: Consider Input: 5360 + 7507 - 3329 + 6345 - 9328 + 3114

Output: 1051


Input: Consider Input: 687 - 5357 - 8688 + 4351 - 4892 - 6040 - 2078 + 4262


Output: 19129