#include <fstream>

using namespace std;

ifstream fin("furnica.in");
ofstream fout("furnica.out");

char ch;

int main()
{
    int t;
    fin>>ch>>t;
    if (ch=='C')
        fout<<(t+1)*(t+1);
    else
        if(t%2==0)
            fout<<(t/2+1)*(t/2+1);
        else
            fout<<((t+1)*(t+2))/2-((t+1)/2)*((t+1)/2);
    return 0;
}