class Solution:
def removeDuplicates(self, origin_list):
length = len(origin_list)
print(origin_list)
for index1 in range(0, length - 1):
for index2 in range(index1 + 1, length):
if origin_list[index1] == origin_list[index2]:
origin_list[index2] = 'null'
else:
break
print(origin_list)
while 'null' in origin_list:
origin_list.remove('null')
new_length = len(origin_list)
#result = []
#result.append(new_length)
#result.append(origin_list)
return new_length