C11112331333132311331333133313331333132313233313331333132222122321   >>    C1111233133313231133133313331333133313231323331333133313222212232   <<    C11112331333132311331333133313331333132313233313331333132222122323   >>      C11112331333132311331333133313331333132313233313331333132222122322   >>