Let be the set of 5 digit integers such that all pairwise sums of digits are unique. For example, a three digit number with this property is . Let and be the minimal and maximal elements of , respectively. Find .
Let be the set of 5 digit integers such that all pairwise sums of digits are unique. For example, a three digit number with this property is . Let and be the minimal and maximal elements of , respectively. Find .
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