C11112331333132311331333133313331333132311213331333133313331212113313231323311   >>    C1111233133313231133133313331333133313231121333133313331333121211331323132331   <<    C11112331333132311331333133313331333132311213331333133313331212113313231323313   >>      C11112331333132311331333133313331333132311213331333133313331212113313231323312   >>