a solution to the plus one problem

plus one problem.py

'''
given an array of integers that represents the digits of
a positive integers, you are asked to add 1 to it and return
the new value of the array'''

# input: [2, 3, 6]   => output: [2, 3, 7]
# input: [2, 9, 9]   => output: [3, 0, 0]

# code starts here #

list1 = [2, 3, 6]
list2 = [2, 9, 9]
list3 = [4, 3, 3]

def plusOne(list):
    newList = []
    Mylist = []
    for i in list:
        newList.append(str(i))
    newList = int(''.join(newList))
    newList = newList + 1
    newList = str(newList)
    for i in newList:
        Mylist.append(int(i))
    print(Mylist)


plusOne(list1)
plusOne(list2)
plusOne(list3)