#include <bits/stdc++.h>

using namespace std;

int main(void) {
	size_t size, result = 0;
	char type;
	
	ios::sync_with_stdio(0);	
	while (cin >> size >> type){
		result = 0;

		if (type == 'K') {
			result = (size < 2)?1:4;	
		} else if (type == 'N') {
			result = (size <= 2)?1:2;			
		} else {
			result = size;
		}

		cout << result << endl;
	}

	return 0;
}