C11112331312111112111133133313331333131333132312111113331323211211131   >>    C1111233131211111211113313331333133313133313231211111333132321121113   <<    C11112331312111112111133133313331333131333132312111113331323211211133   >>      C11112331312111112111133133313331333131333132312111113331323211211132   >>