If we play the game with 7, 5, 3 and 2:
727272...
If we play the game with 2 and 9:
292929...
If we play the game with 9, 3 and 5:
953953953...
If we play the game with 3, 9 and 5:
359359359...
If we play the game with 5 and 9:
595959...
If we play the game with 7, 5, 2 and 7:
77272727...
NOTE: (sorry for adding this so late) what matters is how you write digits in handwriting, and this needs to be included in your answer.