program ideone;

var
a, b, r, d, x, y, x1, y1, x2, y2: real;
eps: real = 0.000000001;

begin
    read(a, b, r);

    d := Sqr(2 * a * b) - 4 * (Sqr(a) + 1) * (Sqr(b) - Sqr(r));
    if d > eps then
    begin
        x1 := (-2 * a * b + Sqrt(d)) / (2 * (Sqr(a) + 1));
        y1 := a * x1 + b;

        x2 := (-2 * a * b - Sqrt(d)) / (2 * (Sqr(a) + 1));
        y2 := a * x2 + b;

        writeln('First x, y', x1:5, y1:5);
        writeln('Second x, y', x2:5, y2:5);
    end
    else if (d < eps) and (d > -eps) then
    begin
        x := (-1 * a * b) / (Sqr(a) + 1);
        y := a * x + b;

        writeln(x:5, y:5);
    end
    else
        writeln(False);
end.