#include <bits/stdc++.h>
using namespace std;
string removeZero(string s) {
  int i = 0, m = 0, j = s.size() - 1;
  if (s[i] == '0') {
    while (s[i] == '0') {
      i++;
    }
  }
  s.erase(0, i);
  if (s[j] == '0') {
    while (s[j] == '0') {
      m++;
      j--;
    }
  }
  s.erase(j + 1, s.size() - j);
  return s;
}
int main() {
  string s;
  cin >> s;
  s = removeZero(s);
  int x = 0, o = s.size() - 1, flag = 0;
  while (x <= s.size() - 1) {
    if (s[x] != s[o]) {
      flag = 1;
      cout << "NO";
      break;
    }
    x++;
    o--;
  }
  if (flag == 0) cout << "YES";
  return 0;
}
