Absolute Subtraction Mistake

Algebra Level 2

Lazy Liz doesn't like absolute values notation, and often drops them from her equations. She always writes

ab=ab. |a-b| = a-b.

How many of the 11×11 11 \times 11 ordered pairs of integers (a,b) (a, b) , each of which are between 0 and 10 inclusive, are there, such that

ab=ab? |a-b| = a-b?


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