C11112331333132311331333133313331312111113311212111133131122112313223311   >>    C1111233133313231133133313331333131211111331121211113313112211231322331   <<    C11112331333132311331333133313331312111113311212111133131122112313223313   >>      C11112331333132311331333133313331312111113311212111133131122112313223312   >>