2011. Final Value of Variable After Performing Operations (Python 3).py

class Solution:
    def finalValueAfterOperations(self, operations: List[str]) -> int:
        x = 0 # initializing variable x with 0

        # Looping over operations
        for i in operations:
            if i == "--X" or i == "X--":
                x -= 1
            elif i == "++X" or i == "X++":
                x += 1
        
        return x