#include <bits/stdc++.h>
#include <windows.h>
using namespace std;
int main(){
	
	
	while(1){
		cout << "000000000000         " << endl;
		Sleep(25);
		cout << " 000000000000        " << endl;
		Sleep(25);
		cout << "  000000000000       " << endl;
		Sleep(25);
		cout << "   000000000000      " << endl;
		Sleep(25);
		cout << "    000000000000     " << endl;
		Sleep(25);
		cout << "     000000000000    " << endl;
		Sleep(25);
		cout << "    000000000000     " << endl;
		Sleep(25);
		cout << "   000000000000       " << endl;
		Sleep(25);
		cout << "  000000000000       " << endl;
		Sleep(25);
		cout << " 000000000000       " << endl;
		Sleep(25);
		cout << "  000000000000       " << endl;
		Sleep(25);
		cout << "   000000000000       " << endl;
		Sleep(25);
		cout << "    000000000000       " << endl;
		Sleep(25);
		cout << "     000000000000       " << endl;
		Sleep(25);
		cout << "      000000000000       " << endl;
		Sleep(25);
		cout << "       000000000000       " << endl;
		Sleep(25);
		cout << "      000000000000       " << endl;
		Sleep(25);
		cout << "     000000000000       " << endl;
		Sleep(25);
		cout << "    000000000000       " << endl;
		Sleep(25);
		cout << "   000000000000       " << endl;
		Sleep(25);
		cout << "  000000000000       " << endl;
		Sleep(25);
		cout << " 000000000000       " << endl;
		Sleep(25);
	}
	
	
	return 0;
}