#!/usr/bin/python
# -*- coding: utf-8 -*-
S=input(u'S:')
d=input(u'd:')
d=d/100.0
N=input(u'N:')  
for P in range (0, N) : 
    S=S+S*d
    P=P+1
    print (u'poluchennaya summa'), S

Yvvod=(((Y1-Y2)*(Xp-X2))/(X1-X2))+Y2
    print Xvvod,Yvvod

#!/usr/bin/python
# -*- coding: utf-8 -*-
import math
def dic (A,B,C):
    D=B*B-(4.0*A*C)
    if D < 0 :
        return []     
    else :
        x1=(- B + math.sqrt(D))/(2.0*A)
        x2=(- B - math.sqrt(D))/(2.0*A)
    return [x1,x2]   
# второй файл 
#!/usr/bin/python
# -*- coding: utf-8 -*-
import math
import razr2
A=input(u'A=')
B=input(u'B=')
C=input(u'C=')
x = razr2.dic(A,B,C)
print (x)