C222123232321333131133133313331323133313231333133323311322233311231   >>    C22212323232133313113313331333132313331323133313332331132223331123   <<    C222123232321333131133133313331323133313231333133323311322233311233   >>      C222123232321333131133133313331323133313231333133323311322233311232   >>