a,b,c=map(int,input().split())
D=b*b-4*a*c
if D<0:
    print("imaginary")
else:
    ans=[(-b-D**0.5)/(2*a),(-b+D**0.5)/(2*a)]
    ans.sort()
    if D==0:
        print(ans[0])
    else:
        print(*ans)