#include <bits/stdc++.h>
using namespace std;
int main() {
  string s, p = " ";
  cin >> s;
  int i, j = 0, f = 0, start, end;
  for (i = s.size() - 1; i >= 0 && f == 0; i--) {
    if (s[i] != '0') {
      end = i;
      f = 1;
    }
  }
  f = 0;
  for (i = 0; i < s.size() && f == 0; i++) {
    if (s[i] != '0') {
      start = i;
      f = 1;
    }
  }
  j = 0;
  for (i = end; i >= start; i--) {
    p[j] = s[i];
    j++;
  }
  j = 0;
  f = 0;
  for (i = start; i <= end && f == 0; i++) {
    if (p[j] != s[i])
      f = 1;
    else
      j++;
  }
  if (f)
    cout << "NO" << endl;
  else
    cout << "YES" << endl;
}
