C11112331333132311331333133313331333132313231123313331322323321   >>    C1111233133313231133133313331333133313231323112331333132232332   <<    C11112331333132311331333133313331333132313231123313331322323323   >>      C11112331333132311331333133313331333132313231123313331322323322   >>