class Drill:
def __init__(self, x, y):
self.x = x
self.y = y
def drill_right(self):
self.x = self.x + 2
drill_1 = Drill(3,10)
drill_2 = Drill(5,8)
drill_3 = Drill(7,12)
drill_4 = Drill(7,13)
drill_1.drill_right()
drill_2.drill_right()
for index in range(3):
drill_3.drill_right()
drill_4.drill_right()