#include using namespace std; #define REP(i,n) for(int i=0, i##_len=(n); i; const int dx[4] = {1, 0, -1, 0}; const int dy[4] = {0, -1, 0, 1}; string char_to_string(char val) { return string(1, val); } int char_to_int(char val) { return val - '0'; } char inverse_char(char c) { if(isupper(c)) return tolower(c); else return toupper(c); } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } struct edge { ll to, cost; }; int main() { double a, b, c; cin >> a >> b >> c; double tmp = b * b - 4 * a * c; if(tmp < 0) { cout << "imaginary" << endl; return 0; } double res1 = -b + sqrt(tmp); res1 /= (2 * a); double res2 = -b - sqrt(tmp); res2 /= (2 * a); if(res1 == res2) cout << fixed << setprecision(20) << res1 << endl; else cout << fixed << setprecision(20) << res2 << " " << res1 << endl; }