#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<iostream>
#include<cstdint>
#include<cmath>
#include<set>
#include<cstddef>
#include<iomanip>
using namespace std;
using i32 = int_fast32_t;
using i64 = int_fast64_t;
using usize = uint_fast64_t;
#define rep(i, n) for (usize i = 0; i < (usize)(n); i++)
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
using P = pair<i64,i64>;

int main(){
ios::sync_with_stdio(false);
std::cin.tie(nullptr);
long double a,b,c;
cin >> a >> b >> c;
long double D = b * b - 4 * a * c;
if(D < 0){
    cout << "imaginary" << endl;
}else{
    D = sqrt(D);
    set<long double> st;
    st.insert((- b + D) / (2 * a));
    st.insert((- b - D) / (2 * a));
    long double ans[2];
    i64 idx = 0;
    for(auto v:st){
        ans[idx] = v;
        idx++;
    }
    rep(i,idx){
        cout << fixed<< setprecision(10) << ans[i] << " \n"[i == idx - 1];
    }
}
}