#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
float li, ls, inc;
cout << "\nValor LI: "; cin >> li;
cout << "Valor LS: "; cin >> ls;
cout << "Valor INC: "; cin >> inc;
cout << "\nSerie: ";
cout << fixed;
if( inc > 0 )
for( float i = li; i <= ls; i+= inc )
cout << setprecision(1) << i << " ";
else
for( float i = ls; i >= li; i+= inc )
cout << setprecision(1) << i << " ";
cout << endl;
return 0;
}