def countingSort(arr):
max_val = max(arr)
count = [0] * (max_val + 1)
while len(arr) > 0:
num = arr.pop(0)
count[num] += 1
for i in range(len(count)):
while count[i] > 0:
arr.append(i)
count[i] -= 1
return arr
mylist = [4, 2, 2, 6, 3, 3, 1, 6, 5, 2, 3]
mysortedlist = countingSort(mylist)
print(mysortedlist)