C11112331333132311331333133313331323132313331211113322331313121   >>    C1111233133313231133133313331333132313231333121111332233131312   <<    C11112331333132311331333133313331323132313331211113322331313123   >>      C11112331333132311331333133313331323132313331211113322331313122   >>