C222123232321333131133133313331323133313231323231312323221221223221211   >>    C22212323232133313113313331333132313331323132323131232322122122322121   <<    C222123232321333131133133313331323133313231323231312323221221223221213   >>      C222123232321333131133133313331323133313231323231312323221221223221212   >>