I don't see your problem: 

_8__3__19 v
48____7__ ? 0
 ^

_8__3__19 v
4_8___7__ ? 1

_8__3__19 v
48_____7_ ? 0
 ^     ^

[download]

For these strings at least, the result is 0 iff there is a clash of two digits somewhere.

In reply to Re^3: Comparison by position and value by ambrus
in thread Comparison by position and value by BrowserUk

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