Вывод текста , D

input_file=open("Hello.txt")
line =input_file.read()
a=line.split()
for i in range (0,3,1):
    a[i]=float(a[i])


from math import sqrt
def f(a,b,c):
    d=b*b-4*a*c
    if d<0:
        print None
        return
    x_1=(-b+sqrt(d))/(2*a)
    x_2=(-b-sqrt(d))/(2*a)
    print x_1, x_2


f(a[0],a[1],a[2])







from math import sqrt
def f(A):
    a = A[0];b=A[1];c=A[2]
    d=b*b-4*a*c
    if d<0:
        print None
        return
    x_1=(-b+sqrt(d))/(2*a)
    x_2=(-b-sqrt(d))/(2*a)
    print x_1, x_2


input_file=open("Hello.txt")
for line in input_file:
    a=line.split()
    for i in range (0,3,1):
        a[i]=float(a[i])
    f(a)