12828,12824	2978,2974
12826	2974
12826	2974
12827	2975
12827	2975
12827	2976
12828	2976
12828	2977
12827	2978
12827	2977
12826	2977
12826	2977
12825	2976
12825	2977
12824	2976
12824	2976
12824	2975
12824	2975
12824	2974
12824	2974
12825	2975
12825	2975
12825	2974
12826	2974