some help)

#include <iostream>

using namespace std;

int main()
{
    int start;
    int end;
    int step;
    cout << "Введите начало";
    cin >> start;
    cout << "Введите конец";
    cin >> end;
    cout << "Введите шаг";
    cin >> step;
    cout << start << " ";
    while (start < end - step) {
        start = start + step;
        cout << start << " ";
    }
}