B3311331313231311331322331333132313331323131323223313233313231111231   >>    B331133131323131133132233133313231333132313132322331323331323111123   <<    B3311331313231311331322331333132313331323131323223313233313231111233   >>      B3311331313231311331322331333132313331323131323223313233313231111232   >>