2
group3_2:x:2147483959:user3_4
4
group3_4:x:2147483989:user3_6
7
group5_1:x:2147484158:user5_2
8
group5_2:x:2147484168:user5_1,user5_2
11
group6_3:x:2147484278:
14
group7_1:x:2147484358:
15
group8_1:x:2147484458:
17
group9_1:x:2147484558:
18
group9_2:x:2147484568:
19
group9_3:x:2147484578:
20
group9_4:x:2147484588:
21
group9_5:x:2147484598:user9_5