|-----------------------------------------------------------|
|----------1-------------1------------1--------------1------|
|--------0------------0------------0---------------0--------|
|-----------------------------------------------------------|
|--3------------3------------0----------------0-------------|
|-----------------------------------------------------------|

|-----------------------------------------------------------|
|----------1-------------1------------1--------------1------|
|-------0-------------0------------0-----------0---0--------|
|------------------------------------------------3----------|
|-----------------------------------------------------------|
|--3------------3---------------3---------------------------|
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