#include <fstream>

using namespace std;

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

int main()
{
    char c;
    fin >> c;

    long long t;
    fin >> t;

    if(c == 'C')
        fout << (t + 1) * (t + 1) << '\n';
    else
        if(t % 2 == 0)
            fout << (t / 2 + 1) * (t / 2 + 1) << '\n';
        else fout << ((t + 1)* (t + 2) /2 - ((t + 1) / 2)*((t + 1) / 2)) << '\n';
    return 0;
}