C22121333132313311211113313331333132233131133133313331312231323221   >>    C2212133313231331121111331333133313223313113313331333131223132322   <<    C22121333132313311211113313331333132233131133133313331312231323223   >>      C22121333132313311211113313331333132233131133133313331312231323222   >>