#define _WIN32_WINNT 0x0500
#include<windows.h>
#include<iostream>
using namespace std;

int main() {
	HWND console = GetConsoleWindow();
	HDC hdc = GetDC(console);
	SelectObject(hdc, CreatePen(0, 30, RGB(255,255,255)));
	POINT p;
	GetCursorPos(&p);
	ScreenToClient(console, &p);
	MoveToEx(hdc, p.x, p.y, NULL);
	for (;;) {
		GetCursorPos(&p);
		ScreenToClient(console, &p);
		LineTo(hdc, p.x, p.y);
		Sleep(1);
	}
	ReleaseDC(console, hdc);
	cin.ignore();
	return 0;
}