#include <iostream>

main()
{
 double total = 0;
 double height = 80;
 for(int i=0; i<10; i++)
 {
  total += height;
  height *= 0.75;
  std::cout << i+1 << "回目" << height << "m" << std::endl;
  total += height;
 }
 std::cout << "合計" << total << "m" << std::endl;

}