#!/usr/bin/python from math import * a = input ("a:") b = input ("b:") c = input ("c:") d=b*b-4*a*c if d < 0: print "You are stupid! D<0!" else: d=sqrt(d) x1=(-b+d)/2/a x2=(-b-d)/2/a if x1==x2: print "x=%s" %x else: print "x1=%s" %x1 print "x2=%s" %x2