#include<stdio.h>
int main()
{
	int a;
	scanf("%d",&a);
	printf("%d",a+(a+1)*10+(a+2)*100+(a+3)*1000+(a+4)*10000);
	return 0;
}
/**************************************************************
	Problem: 1621
	User: admin
	Language: C
	Result: Accepted
	Time:12 ms
	Memory:1144 kb
****************************************************************/