C11112331333132311331333133313331333132313231123313331311221123231123321   >>    C1111233133313231133133313331333133313231323112331333131122112323112332   <<    C11112331333132311331333133313331333132313231123313331311221123231123323   >>      C11112331333132311331333133313331333132313231123313331311221123231123322   >>