Guys, I would appreciate any help using awk or perl with the problem that I have.
I have file in following format;

1111 2222 1
3333 4444 2
5555 6666 3
7777 8888 1
9999 0000 3
1122 2233 1
3344 4455 2
5566 6677 2
7788 8899 2
9900 0011 3


and so on, the problem lies in column number 3 where data is segmented. The start of the data segment is represented by number 1 in the 3rd column and the end of the data segment is signified by number 3 in the 3rd column where as number 2 in the third column means the intermediate points between the start (1) and end (3). I have tried to represent all possible kinds that I can encounter. In simple words, I need the output to be as follows;

1111 2222 1
3333 4444 2
5555 6666 3
7777 8888 4
9999 0000 5
1122 2233 6
3344 4455 7
5566 6677 8
7788 8899 9
9900 0011 10

I would appreciate any help on this issue.