C11112331333132311331333133313331333132313121111331322333132212331   >>    C1111233133313231133133313331333133313231312111133132233313221233   <<    C11112331333132311331333133313331333132313121111331322333132212333   >>      C11112331333132311331333133313331333132313121111331322333132212332   >>