If 1 is added to each even digit and 1 is subtracted from each odd digit in the number 749258693, then the sum of digits which is 4th and 5th from right and left end respectively ____.
1
15
2
12
3
16
4
7
5
13
If 1 is added to each even digit and 1 is subtracted from each odd digit in the number 749258693, then the sum of digits which is 4th and 5th from right and left end respectively ____.