Combination of Random Numbers

Question

I'd like you to programme me a code that will show a combination of Random Numbers from a series of digits, e.g.i'd like all random combinations from 1-50 with a length of 8 digits,e.g. 2 45 34 23 43 12 23 22, next row: 1 35 23 15 11 46 45 22, etc....(it should show all random numbers from 1-50).