C111123313331323113313331333133313231323133312111112111111331322121221   >>    C11112331333132311331333133313331323132313331211111211111133132212122   <<    C111123313331323113313331333133313231323133312111112111111331322121223   >>      C111123313331323113313331333133313231323133312111112111111331322121222   >>