192
Just why
(i.imgur.com)
Hint: read it from bottom to top, right to left, but still in the order 1-2-3
''Solution'':
It is supposed to say "we love burgers"
When I was a kid, the place setting for kids at some restaurants came with crayons and a placemat with lots of little puzzles and mazes and things for kids to work on while they waited for food. This reminds me of that. Especially where the secret message is "we love burgers".