C123122131323132313113313133313221323132312323132313331323221322331   >>    C12312213132313231311331313331322132313231232313231333132322132233   <<    C123122131323132313113313133313221323132312323132313331323221322333   >>      C123122131323132313113313133313221323132312323132313331323221322332   >>