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i = 0, Is the front clear?, Is the front clear?, No, Yes, Yes, Yes, No -…
i = 0
move
move
move
i < 4
move
putBall
turnLeft
i = i + 1
Is the front clear?
Move
Move
Move
i = 0
i < 4
putBall
turnLeft
move
Is the front clear?
Is the left clear?
move
putBall
No
Yes
Yes
Yes
No