p

# -*- coding: utf-8 -*-
ii=0
print 'Please input A,B,C of the equation of line[Ax+By+C=0]'
A=input ('A=')
B=input ('B=')
C=input ('C=')
if A==0 and B==0:
	raise TypeError('bad parameter (A=0 and B=0)')
#str1:Ax,str2:+By,str3:+C
CreateVar=locals()
Parameter=[A,B,C]
for i in Parameter:
	ii+=1
	if i==0:
		CreateVar['str'+str(ii)]=''