process.stdin.resume();
    process.stdin.setEncoding('utf8');
    process.stdin.on('data', function (chunk) {

        //すべて受け取り改行で区切って格納
        var input = chunk.split("\n");
        //完了％を数値に変換
        var percent = Number(input[0]);
        //残り時間を数値に変換
        var remainingtime = Number(input[1]);

        //計算して出力
        var result =remainingtime / (100-percent);
        console.log (Math.floor( result * 100));
    });