Analyze the image and identify any numbers or symbols present.

Analysis of the image:

The image displays several handwritten numbers and symbols on a grid paper background. The visible elements are:

• The number 3
• The number 8
• The number 1
• The number 6
• A symbol resembling an infinity sign (∞)
• A symbol that could be interpreted as a parenthesis (()
• A vertical line segment in gray.
• Horizontal and vertical blue lines forming a grid.

Note: The image is cropped and some parts may be obscured or incomplete.