B33132212112331323223313211232333132313331322331333133313331312113313112131   >>    B3313221211233132322331321123233313231333132233133313331333131211331311213   <<    B33132212112331323223313211232333132313331322331333133313331312113313112133   >>      B33132212112331323223313211232333132313331322331333133313331312113313112132   >>