chess

let label = gets();
let rank = +gets();

if(label==='a' || label==='c'|| label==='e'|| label==='g')
{
    if(rank % 2===0)
    {
        print('light');
    }
    else
    {
        print('dark');
    }
}
else if(label==='b'|| label==='d'|| label==='f'|| label==='h')
{
    if(rank % 2===0)
    {
        print('dark')
    }
    else
    {
        print('light');
    }
}