C111113331333132322331333133313331333133311131211113313231321123121   >>    C11111333133313232233133313331333133313331113121111331323132112312   <<    C111113331333132322331333133313331333133311131211113313231321123123   >>      C111113331333132322331333133313331333133311131211113313231321123122   >>