#include <iostream>
#include <string>
using namespace std;
int N,ans;
string s;
int D[2200][2200],X=1000,Y=1000;
int main() {
cin >> N >> s;
D[X][Y]=1;
ans++;
for(int x=0; x<N; x++) {
if(s[x]=='S') {
Y--;
}
if(s[x]=='N') {
Y++;
}
if(s[x]=='W') {
X--;
}
if(s[x]=='E') {
X++;
}
if(D[X][Y] == 0) {
ans++;
D[X][Y] = 1;
}
}
cout << ans;
}