C11112331333132311331333133313331333132313233311232313331323213231313331   >>    C1111233133313231133133313331333133313231323331123231333132321323131333   <<    C11112331333132311331333133313331333132313233311232313331323213231313333   >>      C11112331333132311331333133313331333132313233311232313331323213231313332   >>