private void BuildRound()
{
string[] sampleEquation;
var mixedEquation = EquationGenerator.generate(diff.MATH_OPERATOR, diff.allowNegatives, diff.MIN, diff.MAX, out sampleEquation);
writer.setBlockValues(mixedEquation);
Block[] equationBlocks = writer.getBlocksbyString(sampleEquation);
FillSlotsByEquation(equationBlocks, diff.placeinslot);
}