/*
 * Author: nskybytskyi
 * Time:   2022-01-13 15:08:45
 */

#include <bits/stdc++.h>
using namespace std;

int main() {
  cin.tie(0)->sync_with_stdio(0);

  char a, b;
  cin >> a >> b;

  string s = "NESWNESW";
  int i = s.find(a);
  int j = s.find(b, i);
  cout << j - i << "\n";

  return 0;
}