过了

附：缺失补全——
STEP17: push the box at (8,6) left
STEP18: push the box at (6,7) left
STEP19: push the box at (6,6) down
STEP20: push the box at (5,5) right
STEP21: push the box at (5,6) down
STEP22: push the box at (6,6) left
STEP23: push the box at (7,7) up
STEP24: push the box at (6,7) right
STEP25: push the box at (8,5) left
STEP26: push the box at (7,6) down
STEP27: push the box at (6,5) right
STEP28: push the box at (6,6) right
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附：缺失补全——
STEP17: push the box at (6,7) down
STEP18: push the box at (8,6) down
STEP19: push the box at (7,7) left