def analyze_numbers(numbers):
    if not numbers:
        return 0, 0, 0
    
    total = sum(numbers)
    average = total / len(numbers)
    
    positive_count = 0
    for num in numbers:
        if num > 0:
            positive_count += 1
    
    return total, average, positive_count

def get_coordinates():
    x = 10
    y = 20
    z = 30
    return x, y, z

data = [3, -1, 4, -2, 0, 5, -3]
total, avg, positives = analyze_numbers(data)

print(f"Numbers: {data}")
print(f"Total: {total}")
print(f"Average: {avg:.2f}")
print(f"Positive numbers: {positives}")

x, y, z = get_coordinates()
print(f"\nCoordinates: x={x}, y={y}, z={z}")