It's only another flesh wound Part 1

Logic Level 2

     \large \square\square \ - \ \square\square \ - \ \square\square

You are given that the numbers 1,2,3,4,5,61,2,3,4,5,6 are to be filled in the square boxes as shown above (without repetition) such that it represents a 2 digit integer subtracting two 2-digit integers.

Of all 6!=7206!=720 possible arrangements, find the smallest positive resultant number.

Details and Assumptions

As an explicit example, we can have 563412=1056 - 34 - 12 = 10 as a resultant number.

See Part 2.

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