> 3 contour
121.243	21.5539	3
121.327	21.545	3
121.41	21.5315	3
121.436	21.5202	3
121.493	21.4987	3
121.575	21.4369	3
121.577	21.4352	3
121.638	21.3536	3
121.66	21.2836	3
121.665	21.2702	3
121.675	21.1869	3
121.66	21.1219	3
121.657	21.1036	3
121.621	21.0202	3
121.577	20.9681	3
121.54	20.9369	3
121.493	20.9029	3
121.41	20.87	3
121.327	20.8581	3
121.264	20.8536	3
121.243	20.8509	3
121.238	20.8536	3
121.16	20.8909	3
121.083	20.9369	3
121.077	20.9405	3
121.001	21.0202	3
120.993	21.0363	3
120.959	21.1036	3
120.943	21.1869	3
120.95	21.2702	3
120.984	21.3536	3
120.993	21.3672	3
121.045	21.4369	3
121.077	21.4655	3
121.16	21.5133	3
121.176	21.5202	3
121.243	21.5539	3
> 6 contour
121.243	21.4053	6
121.327	21.4107	6
121.41	21.3718	6
121.435	21.3536	6
121.493	21.2787	6
121.499	21.2702	6
121.516	21.1869	6
121.493	21.1286	6
121.486	21.1036	6
121.41	21.0311	6
121.389	21.0202	6
121.327	20.9844	6
121.243	20.9944	6
121.212	21.0202	6
121.16	21.072	6
121.132	21.1036	6
121.097	21.1869	6
121.114	21.2702	6
121.16	21.3293	6
121.181	21.3536	6
121.243	21.4053	6
> 9 contour
121.243	21.3326	9
121.327	21.3529	9
121.41	21.2991	9
121.436	21.2702	9
121.463	21.1869	9
121.41	21.1072	9
121.407	21.1036	9
121.327	21.0406	9
121.243	21.0655	9
121.205	21.1036	9
121.163	21.1869	9
121.185	21.2702	9
121.243	21.3326	9
> 12 contour
121.243	21.2776	12
121.327	21.3245	12
121.391	21.2702	12
121.41	21.2215	12
121.425	21.1869	12
121.41	21.1643	12
121.362	21.1036	12
121.327	21.0762	12
121.27	21.1036	12
121.243	21.1246	12
121.201	21.1869	12
121.236	21.2702	12
121.243	21.2776	12
> 15 contour
121.327	21.296	15
121.357	21.2702	15
121.397	21.1869	15
121.327	21.1092	15
121.243	21.1814	15
121.24	21.1869	15
121.243	21.1953	15
121.284	21.2702	15
121.327	21.296	15