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

#define PB push_back
#define CL(A, I) (memset(A, I, sizeof(A)))
#define D(X) cout<<"  "<<#X": "<<X<<endl;
#define FOR(i, m, n) for(int i(m); i < n; i++)
#define F(n) FOR(i, 0, n)
#define FF(n) FOR(j, 0, n)
#define aa first
#define bb second

typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll, ll> ii;
typedef vector<ii> vii;

int main() {
	int x;
	char c;
	while(cin>>x>>c){
		if(x==1) {
			cout<<1<<endl;
			continue;
		}
		
		if(c=='K')cout<<4<<endl;
		if(c=='N'){if(x<=2)cout<<1<<endl;else cout<<2<<endl;}
		if(c=='R')cout<<x<<endl;
		if(c=='B')cout<<x<<endl;
	
	}
}