B3311331313231311331322331333132333131333132233133313233313231323131111231   >>    B331133131323131133132233133313233313133313223313331323331323132313111123   <<    B3311331313231311331322331333132333131333132233133313233313231323131111233   >>      B3311331313231311331322331333132333131333132233133313233313231323131111232   >>