#include<iostream> #include<cstring> #include<algorithm> using namespace std ; double n; bool check(double x){ if(x*x*x > n) return true ; else return false ; } int main(){ int t ; cin >> t ; while(t --){ cin >> n ; double l = 0 , r = 100 ; while(r-l > 1e-8){ double mid = (l + r) / 2 ; if(check(mid)) r = mid; else l = mid ; } printf("%.3f\n",l) ; } }