#include <iostream>
 
    using namespace std;
 
      struct List1 {
        double time;
        List1* next;
      };
 
      struct List2 {
        double time;
        List2* next;
      };
 
      List1* push(double time, List1* tail) {
        return new List1{time,tail}; 
      }
 
      List2* push(double time, List2* tail) {
        return new List2{time,tail}; 
      }
 
 
      List1* reverse(List1* rev) { 
        List1* a = nullptr;
        while(rev) {
          List1 *b = rev -> next;
          rev -> next = a;
          a = rev;
          rev = b;
        }
        return a;
      }
 
      List2* reverse(List2* rev) { 
        List2* c = nullptr;
        while(rev) {
          List2 *d = rev -> next;
          rev -> next = c;
          c = rev;
          rev = d;
        }
        return c;
      }
 
 
      void destroy(List1* list1, List2* list2) {
        while (list1 != 0 && list2) {
          List1* x = list1 -> next;
          List2* n = list2 -> next;
 
          cout << "прошло " << list1 -> time << " с., расстояние между телом и плоскостью теперь " << list2 -> time << " м." << endl;
 
          delete list2, list1;
          list2 = n;
          list1 = x; 
        }
      }
 
 
    int main() {
      double s, v1, v2, t; // расстояние между телом и плоскостью, скорость тела, скорость плоскости, время столкновения
      double x = 0, t1 = 0; // начальные координата тела и время 
 
       List2 * list2 = new List2;
       List1 * list1 = new List1;
 
      cin >> s;
      cin >> v1;
      cin >> v2;
 
 
        if (v1 <= v2) {
          cout << "тело никогда не столкнётся с плоскостью";
        } 
 
 
        else  {
 
          while (s > 0.000001) {
// s стремится к нулю, но никогда не примет это значение => берём s как можно ближе к 0, считая, что в это время тело и плоскость уже столкнутся
            list2 = push(s, list2);
            list1 = push(t, list1);
 
            x += s;
            t1 = s/v1;
            t += t1;
            s = v2*t1;
 
          }
 
     list2 = push(s,list2);
     list1 = push(t,list1);
 
  	 list2 = reverse(list2);
     list1 = reverse(list1);
 
     destroy(list1, list2);
 
      cout << "спустя " << t << " с. тело столкнулось с плоскостью, преодолев " << x << " м." << endl; 
 
        }
 
      return 0;
    }

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