C11112331312111112111133133313331333132313233313331312111133322132322331   >>    C1111233131211111211113313331333133313231323331333131211113332213232233   <<    C11112331312111112111133133313331333132313233313331312111133322132322333   >>      C11112331312111112111133133313331333132313233313331312111133322132322332   >>