In this clutter of num|bers dominos have been hidden. They are listed on the right hand side. Two num|bers side by side or on top op each other form one domino. The two num|bers of each domino appear next to each other many times, but each domino must appear only once and no num|bers must be left out. Each domino has a de|fined place. Draw the bor|der of all dominos!