Visitor
0
1
2
3
4
5
6
7
8
9
0
Check
0
1
2
3
4
5
6
7
8
9
0
Checkpoint
0
1
2
3
4
5
6
7
8
9
0
E-Stamp
0
1
2
3
4
5
6
7
8
9
0
E-Stamp Time
0
1
2
3
4
5
6
7
8
9
0
