#include "stdio.h"int hws(long n){ long x=n,t=0,k; while (x>0) { k=x%10; t=t*10+k; x=x/10; } if( ) return 1; else return 0;}void main(){ long k,s=0; int hws(long n); for (k=200;k<=3000;k++) if ( ) s=s+k; printf("\n%ld",s);}