#!/usr/bin/python
import numpy as np 
import cmath as cm

a,b,c=np.loadtxt("sv.dat")
print a,b,c

def root(a,b,c):
    dt=cm.sqrt(b**2-4.*a*c)
    x1=(-b+dt)/(2.*a)
    x2=(-b-dt)/(2.*a)
    return x1,x2
print root(a,b,c)