Write a program that is used to increase the deletion of a picture of the city

Write a program that is used to increase the deletion of a picture of the city
A JPG format map, which has the names of major cities, write and delete changes to the city on the program! Map Image City

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First there is a picture (this picture is not a picture of any city)
And depending on your situation, for example, which city you need.
Write something on the coordinates of the response on the picture
Output picture
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Your response to my reply has been delayed by 24 hours, so I will respond to you at most 240 hours later.
1, the Union ancient is the provincial division, not the city.
2, the algorithm is also very simple:
A) positioning
b) Replace the pixel of the anchor point with the pixel on the left of the anchor point
D) Anchor point = Anchor Point + 1
e) Repeat B until the pixel of the anchor point = = The pixel to the left of the initial anchor point

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