#define _CRT_SECURE_NO_WARNINGS 1 

#include <stdio.h>
#include <math.h>

int main()
{  
	int a = 0;
	int Sn = 0;
	scanf("%d", &a);
	for (int i = 0; i < 5; i++)
	{
		int temp = 0;
		for (int j = 0; j <=i; j++)
		{
			temp *= 10;
			temp += a;
		}
		Sn += temp;
	}
	printf("ǰΪ%d", Sn);
	return 0;
}