ChessSquareColorFixed

let print = this.print || console.log;


let label = gets();
let rankLine = Number(gets());
let result;


let vertical;

if (label == 'a' || label == 'c' || label == 'e' || label == 'g'){
    vertical = 'A';
// if (label == 'b' || label == 'd' || label == 'f' || label == 'h')
} else {
    vertical = 'B';
}
if (rankLine % 2 === 1) {
    if (vertical === 'A') {
        result = 'dark';
    } else if (vertical === 'B') {
        result = 'light';
    }
} else {
    if (vertical === 'A') {
        result = 'light';
    } else {
        result = 'dark';
    }
}

print(result);