C111123313121111121111331323133313331333132333133313231211213221   >>    C11112331312111112111133132313331333133313233313331323121121322   <<    C111123313121111121111331323133313331333132333133313231211213223   >>      C111123313121111121111331323133313331333132333133313231211213222   >>