How many such pairs of digits are there in the number 561234 each of which has as many digits between them in the number as when the digits are arranged in ascending order ?
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8 pairs
1-2 , 1-3, 1-4, 2-3, 2-4, 3-4,5-6, 2-5
1-2 , 1-3, 1-4, 2-3, 2-4, 3-4,5-6, 2-5
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