C123122131323132313113313133313123231333132313112331323223313223321   >>    C12312213132313231311331313331312323133313231311233132322331322332   <<    C123122131323132313113313133313123231333132313112331323223313223323   >>      C123122131323132313113313133313123231333132313112331323223313223322   >>