C11112331333132311331333133313331333132313231123313331311112112111   >>    C1111233133313231133133313331333133313231323112331333131111211211   <<    C11112331333132311331333133313331333132313231123313331311112112113   >>      C11112331333132311331333133313331333132313231123313331311112112112   >>