weights	feed
1	60.8	1
2	67	1
3	65	1
4	68.6	1
5	61.7	1
6	68.7	2
7	67.7	2
8	75	2
9	73.3	2
10	71.8	2
11	69.6	3
12	77.1	3
13	75.2	3
14	71.5	3
15	61.9	4
16	64.2	4
17	63.1	4
18	66.7	4
19	60.3	4