|--------3------------------------3---------------------|
|--------3------------------------3---------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|x4
|-------------------------------------------------------|
|---3---------------------------------------------------|

|----6-6-6-6---3-3--------------------------------------|
|----------------------6-6-6-6---3-3--------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|

|----6-6-6-6---3-3--------------------------------------|
|----------------------6-6-6-6---3-3--------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|

|----6-6-6-6---3-3----------6-6-6-6---3-3---------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|

|----6-6-6-6---3-3----------6-6-6-6---3-3---------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------------------------|

|-x----x-----3-------x-----x-------3------|
|-x----x-----3-------x-----x-------3------|
|-x----x-------------x-----x--------------|
|-x----x-------------x-----x--------------|
|-x----x-------------x-----x--------------|
|-x----x-------------x-----x--------------|

|-x----x-----3-------x-----x-------3------|
|-x----x-----3-------x-----x-------3------|
|-x----x-------------x-----x--------------|
|-x----x-------------x-----x--------------|
|-x----x-------------x-----x--------------|
|-x----x-------------x-----x--------------|
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