#include<iostream>
#include<string>
#include<map>
using namespace std;
int main() {
	int n=0;
	char a,b;
	cin >> a;
	cin >> b;
	if (a == 'E') {
		if (b == 'E') n = 0;
		else if (b == 'S') n = 1;
		else if (b == 'W') n = 2;
		else if (b == 'N') n = 3;
	}
	if (a == 'S') {
		if (b == 'S') n = 0;
		else if (b == 'W') n = 1;
		else if (b == 'N') n = 2;
		else if (b == 'E') n = 3;
	}
	if (a == 'W') {
		if (b == 'W') n = 0;
		else if (b == 'N') n = 1;
		else if (b == 'E') n = 2;
		else if (b == 'S') n = 3;
	}
	if (a == 'N') {
		if (b == 'N') n = 0;
		else if (b == 'E') n = 1;
		else if (b == 'S') n = 2;
		else if (b == 'W') n = 3;
	}
	cout << n << endl;
	return 0;
}