[From *Thinking Mathematically*, p. 172]

George Glaeser of Strasbourg put a set of dominoes more or less randomly in a flat tray and took a photograph. The exposure was not correct, and although the numbers can be discerned, the positions of the individual dominoes cannot.

Each domino is a rectangle composed of two adjacent squares, each with a number. In the set there is only one domino with each combination of numbers from the numbers 0 through 6. For example, there is one domino with 2,3, and one with 4,4.

Can you reconstruct the dominoes?

3 6 2 0 0 4 4 6 5 5 1 5 2 3 6 1 1 5 0 6 3 2 2 2 0 0 1 0 2 1 1 4 3 5 5 4 3 6 4 4 2 2 4 5 0 5 3 3 4 1 6 3 0 1 6 6

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