C1111233133313231133133313331333133313223313133121111331323221233111   >>    C111123313331323113313331333133313331322331313312111133132322123311   <<    C1111233133313231133133313331333133313223313133121111331323221233113   >>      C1111233133313231133133313331333133313223313133121111331323221233112   >>