arsya's trick for twos day the numbers can be the same, it still works
this is what he says about this: "Pick three numbers and arange them into all the 2-digit numbers the can become (10a+b, 10a+c, 10b+c, 10b+a, 10c+a, 10c+a) and add them all up. After that, divide it by all the three digits added up"
