C222123232321333131133133313331323133313231322132313121312331231   >>    C22212323232133313113313331333132313331323132213231312131233123   <<    C222123232321333131133133313331323133313231322132313121312331233   >>      C222123232321333131133133313331323133313231322132313121312331232   >>