What are the coordinates of these points?

Point A
1. (x, y+150)
2. (x, y-150)
3. (x+150, y)
4. (x-150, y)
Point B
1. (x-100, y+200)
2. (x+100, y+200)
3. (x+200, y-100)
4. (x+200, y+100)
Point C
1. (x+200, y)
2. (x, y+200)
3. (x-200, y)
4. (x, y-200)
Point D
1. (x+100, y+50)
2. (x-100, y-50)
3. (x+100, y-50)
4. (x+50, y+100)
Point E
1. (x+50, y)
2. (x, y-50)
3. (x+50, y)
4. (x, y+50)
Point F
1. (x+50, y-100)
2. (x-100, y+50)
3. (x-50, y+50)
4. (x-50, y+100)
Point G
1. (x-150, y)
2. x+150, y)
3. (x, y-150)
4. (x, y+150)
Point H
1. (x+100, y+100)
2. (x+100, y-100)
3. (x-100, y+100)
4. (x-100, y-100)
Point I
1. (x+100, y+50)
2. (x-50, y+100)
3. (x+100, y-50)
4. (x+50, y-100)
Point J
1. (x, y-50)
2. (x+50, y)
3. (x, y+50)
4. (x-50, y)
Point K
1. (x-100, y-150)
2. (x+150, y+100)
3. (x+100, y+150)
4. (x+150, y-100)
Point L
1. (x+100, y-150)
2. (x+150, y-100)
3. (x-100, y-150)
4. (x-150, y+100)