C222123232321333131133133313331323133313231313312132213112111221   >>    C22212323232133313113313331333132313331323131331213221311211122   <<    C222123232321333131133133313331323133313231313312132213112111223   >>      C222123232321333131133133313331323133313231313312132213112111222   >>