# Dictionary representing the current stock of products
inventory = {
    "apples": 17,
    "bananas": 75,
    "oranges": 2,
    "grapes": 50
}

# Function to restock items that have low stock levels by adding a specified amount
def restock(product, inventory, restock_amount):
    inventory[product] += restock_amount
    print(f"Restock order placed for {product}. New stock level: {inventory[product]} units.")

# Function to check which items are below the stock threshold and trigger the `restock` function
def check_stock_levels(inventory, threshold):
    for product, quantity in inventory.items():
        if quantity < threshold:
            # If the stock is below the threshold, call the `restock` function to add 50 units
            restock(product, inventory, 50)

# Checking the stock levels for all products in the inventory with a threshold of 30 units
check_stock_levels(inventory, 30)

# Display the final inventory after restocking
print("Final inventory status:", inventory)