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