import math a,b,c=map(float,input().split()) x=bb-4ac if x>0: x1=(0-b+math.sqrt(x))/(2a) x2=(0-b-math.sqrt(x))/(2a) print("x1=%.5f;x2=%.5f"%(min(x2,x1),max(x1,x2))) elif x==0: x1=(0-b)/(2a) print("x1=x2=%.5f"%x1)