C11112331312111112111133133313331333132313233313331311331323211331323222311   >>    C1111233131211111211113313331333133313231323331333131133132321133132322231   <<    C11112331312111112111133133313331333132313233313331311331323211331323222313   >>      C11112331312111112111133133313331333132313233313331311331323211331323222312   >>