C222123232321333131133133313331323133313231323231312323232213233231   >>    C22212323232133313113313331333132313331323132323131232323221323323   <<    C222123232321333131133133313331323133313231323231312323232213233233   >>      C222123232321333131133133313331323133313231323231312323232213233232   >>