/****************************/
/* 関数（様々な引数） */
/* coded by Y.Suganuma */
/****************************/
#include <iostream>
#include <vector>
using namespace std;
template <class cl> vector<cl> range(cl start, cl end, cl step = 1) {
vector<cl> x;
if (step > 0) {
for (cl i1 = start; i1 < end; i1 += step)
x.push_back(i1);
}
else {
for (cl i1 = start; i1 > end; i1 += step)
x.push_back(i1);
}
return x;
}
int main()
{
for (auto a : range(1, 4))
cout << a << " ";
cout << endl;
for (auto a : range(10, 0, -1))
cout << a << " ";
cout << endl;
for (auto a : range(1.3, 4.7, 1.1))
cout << a << " ";
cout << endl;
return 0;
}