C11112331312111112111133133313331333132313233313231333133321333131   >>    C1111233131211111211113313331333133313231323331323133313332133313   <<    C11112331312111112111133133313331333132313233313231333133321333133   >>      C11112331312111112111133133313331333132313233313231333133321333132   >>