How to generate random number table in R?

I want to generate random number table. Let us consider I have to generate 100 random number of length 5. First digit denote Group 1 or 2 and second digit denote version-1, or 2 and last 3 digit are random numbers ranging from 001 to 999. For Example 11200, 12001, 21891....21005, 22105 are hundred random numbers.