int main()
{
	int a,b,c,d,e,f;
	scanf("%d",&a);
	b=a/10;
	c=a/100;
	d=a/1000;
	e=a/10000;
	if(e>=1)
		f=5;
	else
		if(d>=1)
			f=4;
		else
			if(c>=1)
				f=3;
			else
				if(b>=1)
					f=2;
				else
					f=1;
	d=d-10*e;
	c=c-100*e-10*d;
	b=b-1000*e-100*d-10*c;
	a=a-10000*e-1000*d-100*c-10*b;
	switch(f)
	{case 5:printf("%d%d%d%d%d\n",a,b,c,d,e);break;
	case 4:printf("%d%d%d%d\n",a,b,c,d);break;
         case 3:printf("%d%d%d\n",a,b,c);break;
	case 2:printf("%d%d\n",a,b);break;
	case 1:printf("%d\n",a);break;
	}
	return 0;
}
