I need to create a graph and when entering the coordinates an error occurs when pasting them in the console the following happens

Command: Specify opposite corner or [Fence/WPolygon/CPolygon]: 0,0
Command:
_HELP
Command: 0.6,8
Unknown command "6,8". Press F1 for help.
Command:
HELP
Command: 1.5,17
Unknown command "5,17". Press F1 for help.
Command:
HELP
Command: 2.4,27
Unknown command "4,27". Press F1 for help.