def METHOD_NAME(arr):
	# Find the maximum number to know number of digits
	max1 = max(arr)
	# Do counting sort for every digit. Note that instead
	# of passing digit number, exp is passed. exp is 10^i
	# where i is current digit number
	exp = 1
	while max1 / exp >= 1:
		countingSort(arr, exp)
		exp *= 10