void main()
{
	int a,b,c,d,e,f;
	scanf("%d\n",&a);
	b=a/10000;
	c=(a-10000*b)/1000;
	d=(a-10000*b-1000*c)/100;
	e=(a-10000*b-1000*c-100*d)/10;
	f=a-10000*b-1000*c-100*d-10*e;
	if(b!=0&&c!=0&&d!=0&&e!=0&&f!=0) printf("%d%d%d%d%d",f,e,d,c,b);
	else if(b==0&&c!=0&&d!=0&&e!=0&&f!=0) printf("%d%d%d%d",f,e,d,c);
	     else if(b==0&&c==0&&d!=0&&e!=0&&f!=0) printf("%d%d%d",f,e,d);
	          else if(b==0&&c==0&&d==0&&e!=0&&f!=0) printf("%d%d",f,e);
                   else if(b==0&&c==0&&d==0&&e==0&&f!=0) printf("%d",f);
}