D3312121211331322331313232233132333132333132233132333132311132313221   >>    D331212121133132233131323223313233313233313223313233313231113231322   <<    D3312121211331322331313232233132333132333132233132333132311132313223   >>      D3312121211331322331313232233132333132333132233132333132311132313222   >>