C112313233211113313121111331333133313231323133313331323231323221   >>    C11231323321111331312111133133313331323132313331333132323132322   <<    C112313233211113313121111331333133313231323133313331323231323223   >>      C112313233211113313121111331333133313231323133313331323231323222   >>