[so cal lurker]

Originally Posted by Eastshire

It's 36 isn't it? 0,1,2,3,4,5 are possible as the first or second digit gives 36 combinations.

Originally Posted by bob jenkins

The "0 and 00" argument is for 36 total vs. 37. They can't have "1 and 01" either, but that doesn't bring the total down to 34.

Here are the combinations:

0 1 2 3 4 5
10 11 12 13 14 15
20 21 22 23 24 25
30 31 32 33 34 35
40 41 42 43 44 45
50 51 52 53 54 55

Doh!!!