#include <stdlib.h>
#include <stdio.h>

int main()
{
    int t=0;
    char a;
    freopen("furnica.in","r",stdin);
    scanf("%c%d",&a,&t);
    fclose(stdin);    
    
    if( a =='S')
    {
        if(t%2==0)
                  t=((t/2)+1)*((t/2)+1);
        else 
                  t=((t+1)*(t+2)/2)-(((t+1)/2)*((t+1)/2));                 
    }
    else if( a== 'C')
                 t=(t+1)*(t+1);
    
    freopen("furnica.out","w",stdout);
                 printf("%d",t);
    fclose(stdout);
    return 0;
}