[[1553936400, 2] ,[1553940000, 3] ,[1553943600, 1] ,[1553947200, 2] ,[1553950800, 1] ,[1553954400, 3] ,[1553961600, 1] ,[1553965200, 1] ,[1553968800, 3] ,[1553972400, 2]