Question 541031
Neither the 1st or the 3rd digit can be {{{0}}}
The smallest they can be is {{{1}}}
The smallest the 2nd digit can be is {{{0}}}
{{{ x = 101 }}}
{{{ y = 101 }}}
{{{ x - y = 0 }}}
Since {{{0}}} is neither positive or negative
the 3rd digit has to be {{{2}}}
{{{ x = 102 }}}
{{{ y = 201 }}}
{{{  abs( x - y ) = 99 }}}
The 2nd digit can be any value and
{{{  abs( x - y ) }}} is still {{{99}}}
which is smallest absolute value