import sys
from collections import defaultdict

from typing import List, Tuple


def int1(x: str, /): return int(x) - 1


def input(): return sys.stdin.readline().rstrip('\n')


def dbg(*args, **kwargs):
    print(*(repr(arg) for arg in args), *(f'{k}: {repr(v)}' for k, v in kwargs.items()), sep='; ', file=sys.stderr)


def main():
    a,b,c=map(int, input().split())
    d = b*b-4*a*c
    if d > 0:
        return sorted([(-b-d**0.5)/(2*a), (-b+d**0.5)/(2*a)])
    elif d == 0:
        return -b/(2*a)
    else:
        return 'imaginary'


def _start():
    ret = main()

    if ret is not None:
        if isinstance(ret, List) or isinstance(ret, Tuple):
            print(*ret)
        else:
            print(ret)


if __name__ == '__main__':
    _start()