C22212323232133313113313331333132313331323221121212331323113121   >>    C2221232323213331311331333133313231333132322112121233132311312   <<    C22212323232133313113313331333132313331323221121212331323113123   >>      C22212323232133313113313331333132313331323221121212331323113122   >>