C222123232321333131133133313331323133313232113333112132213233221   >>    C22212323232133313113313331333132313331323211333311213221323322   <<    C222123232321333131133133313331323133313232113333112132213233223   >>      C222123232321333131133133313331323133313232113333112132213233222   >>