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i=0, front is clear, is front clear? - Coggle Diagram
i=0
i<4?
move
putBall
turnleft
i+4
move
move
move
front is clear
move
i<4?
yes
putball
turnleft
move
no
movr
move
is front clear?
if left clear?
yes
move
move
no
putball
turnleft