C11112331333132311331333133313331333132313233311232313331313321   >>    C1111233133313231133133313331333133313231323331123231333131332   <<    C11112331333132311331333133313331333132313233311232313331313323   >>      C11112331333132311331333133313331333132313233311232313331313322   >>