PraktikumModulIILooping

#include <iostream>

using namespace std;

int main()
{
 int x, y, z;

 do{
    cout << "X : ";
    cin >> x;
    cout << "Y : ";
    cin >> y;

    if(x<=y)
        break;
 }while(true);

 z=0;

 for (int i = x; i <= y; i++){
    if(i>=0){
        cout << i << " ";

    }
    else{
        cout << i << " ";
    }

    z=z;}}