C111123313121111121111331333133313331333131221111113313231323223311   >>    C11112331312111112111133133313331333133313122111111331323132322331   <<    C111123313121111121111331333133313331333131221111113313231323223313   >>      C111123313121111121111331333133313331333131221111113313231323223312   >>