Difference between CM11 and CM21 Data

C A L E N D A R
73
December 2017
48
Mon
Tue
Wed
Thu
Fri
Sat
Sun
48
27
28
29
30
1
2
3
49
4
5
6
7
8
9
10
50
11
12
13
14
15
16
17
51
18
19
20
21
22
23
24
52
25
26
27
28
29
30
31
01
1
2
3
4
5
6
7
Diff_CM11-CM21