C222123232321333131133133313331333132313231333133322331223233122112323221   >>    C22212323232133313113313331333133313231323133313332233122323312211232322   <<    C222123232321333131133133313331333132313231333133322331223233122112323223   >>      C222123232321333131133133313331333132313231333133322331223233122112323222   >>