CF218A Mountain Scenery

Little Bolek has found a picture with $ n $ mountain peaks painted on it. The $ n $ painted peaks are represented by a non-closed polyline, consisting of $ 2n $ segments. The segments go through $ 2n+1 $ points with coordinates $ (1,y_{1}) $ , $ (2,y_{2}) $ , $ ... $ , $ (2n+1,y_{2n+1}) $ , with the $ i $ -th segment connecting the point $ (i,y_{i}) $ and the point $ (i+1,y_{i+1}) $ . For any even $ i $ $ (2

The first line contains two space-separated integers $ n $ and $ k $ $ (1

Print $ 2n+1 $ integers $ y_{1},y_{2},...,y_{2n+1} $ — the $ y $ coordinates of the vertices of the polyline on the initial picture. If there are multiple answers, output any one of them.