C111123313121111121111331333133313331333131233133313231323221323221   >>    C11112331312111112111133133313331333133313123313331323132322132322   <<    C111123313121111121111331333133313331333131233133313231323221323223   >>      C111123313121111121111331333133313331333131233133313231323221323222   >>