#include<stdio.h>
int main()
{
	int a;
	scanf("%d",&a);
	int b=a/100%10;
	int c=a/10%10;
	int d=a/1%10;
	printf("%d\n",d*100+c*10+b+a);
		
	return 0;
}
/**************************************************************
	Problem: 1020
	User: admin
	Language: C
	Result: Accepted
	Time:9 ms
	Memory:1144 kb
****************************************************************/