We call a number peachy if every digit in the number is either a 3 or next to a 3. For example, the numbers 83 and 131 are all peachy, but the numbers 304 and 31653 are not peachy. How many positive 2-digit numbers are peachy?
13 23
30 - 39
43 53 63 83 83 93
18 such numbers
Well, I just figured it out myself o_o thanks anyways cphill!
OK, viola....
+165 
