b4015 b4014 b4016 b4018 b4015 0 1 1.41421356237309 3441.982422965 b4014 1 0 2 3477.97182277258 b4016 1.41421356237309 2 0 2043.28412121271 b4018 3441.982422965 3477.97182277258 2043.28412121271 0