C11112331312111112111133133313231333132313331333131313232233132222231   >>    C1111233131211111211113313331323133313231333133313131323223313222223   <<    C11112331312111112111133133313231333132313331333131313232233132222233   >>      C11112331312111112111133133313231333132313331333131313232233132222232   >>