C123122131323132313113313133313221323132313132313331313133313232213221   >>    C12312213132313231311331313331322132313231313231333131313331323221322   <<    C123122131323132313113313133313221323132313132313331313133313232213223   >>      C123122131323132313113313133313221323132313132313331313133313232213222   >>