C11112331333132311331333133313331333132233131331211111333112113231   >>    C1111233133313231133133313331333133313223313133121111133311211323   <<    C11112331333132311331333133313331333132233131331211111333112113233   >>      C11112331333132311331333133313331333132233131331211111333112113232   >>