Question 143654
{{{33*(a-b) = a^2 - b^2}}}
{{{33*(a-b) = (a-b)(a+b)}}}
{{{33 = a + b}}}
They have 33 coins. It is impossible to tell
how many are in each group. It can range from
{{{a=17}}},{{{b=16}}} to {{{a=32}}},{{{b=1}}}