C112313233211113313121111331333133313231323133313331333112233231   >>    C11231323321111331312111133133313331323132313331333133311223323   <<    C112313233211113313121111331333133313231323133313331333112233233   >>      C112313233211113313121111331333133313231323133313331333112233232   >>