B33132212112331323223313211232333132313331312111133132322121111   >>    B3313221211233132322331321123233313231333131211113313232212111   <<    B33132212112331323223313211232333132313331312111133132322121113   >>      B33132212112331323223313211232333132313331312111133132322121112   >>