C2221232323213331311331333133313331323132313331333213233121112321   >>    C222123232321333131133133313331333132313231333133321323312111232   <<    C2221232323213331311331333133313331323132313331333213233121112323   >>      C2221232323213331311331333133313331323132313331333213233121112322   >>