C11112331312111112111133133313331333131333132312111113331323223231   >>    C1111233131211111211113313331333133313133313231211111333132322323   <<    C11112331312111112111133133313331333131333132312111113331323223233   >>      C11112331312111112111133133313331333131333132312111113331323223232   >>