#include <stdio.h>




int main( ) {

    int a;
    int b;
    int c;
    scanf(" %d", a);
     scanf(" %d", b);
    scanf(" %d", c);

            if (a==0 && b==0)
            {
                if (a==0)
                {
                    if (c==0)
                    {
                        int re;
                        int d;
                        int im;
                        re=b/(2*a);
                        d = b * b - (4 * a * c);
                        im = abs(d) / (2 * a);
                        if (d>0)
                        {
                            if (d<0)
                            {
                                int x1;
                                int x2;
                                x1 = re;
                                x2 = x1;
                                return 0;
                            }
                            else
                            {
                                return 0;
                            }
                        }

                    }
                    else
                    {
                        int x1;
                        int x2;
                        x1 = b / a;
                        x2 = 0;
                        pirntf = ("%d, x1");
                        pirntf = ("%d, x2");
                        return 0;

                    }
                }
                else
                {
                    int x;
                    x = c / b;
                    pirntf = ("%d, x");
                    return 0;
                }
            }


retur 0;
}