C111113331333132322331333133313331333133313112113313233313123121   >>    C11111333133313232233133313331333133313331311211331323331312312   <<    C111113331333132322331333133313331333133313112113313233313123123   >>      C111113331333132322331333133313331333133313112113313233313123122   >>