16 1 1 1
#l1 l2 l3 k atom_id
0 0 0 0 1
1 0 0 0 2
2 0 0 0 3
3 0 0 0 4
4 0 0 0 5
5 0 0 0 6
6 0 0 0 7
7 0 0 0 8
8 0 0 0 9
9 0 0 0 10
10 0 0 0 11
11 0 0 0 12
12 0 0 0 13
13 0 0 0 14
14 0 0 0 15
15 0 0 0 16