C222123232321333131133133313331323133313231323133311322131232221   >>    C22212323232133313113313331333132313331323132313331132213123222   <<    C222123232321333131133133313331323133313231323133311322131232223   >>      C222123232321333131133133313331323133313231323133311322131232222   >>