C123122131323132313113313133313123231333132313112331323331323223313232111   >>    C12312213132313231311331313331312323133313231311233132333132322331323211   <<    C123122131323132313113313133313123231333132313112331323331323223313232113   >>      C123122131323132313113313133313123231333132313112331323331323223313232112   >>