10 68 94 96 75 14 65 72 71 18 44 56 13 98 57 30 25 55 82 22 21 LRDUUUDL
4399.0 3795.0 3373.0 2227.0 1935.5 1243.0 775.0 675.0
3<=N<=300000 1<=Xi,Yi<=1000000000 不存在两个点 X坐标或 Y坐标相同