C11112331333132311331333133313331333132233131331211113313113311321   >>    C1111233133313231133133313331333133313223313133121111331311331132   <<    C11112331333132311331333133313331333132233131331211113313113311323   >>      C11112331333132311331333133313331333132233131331211113313113311322   >>