C11112331312111112111133133313331333132311211331311211331322332321   >>    C1111233131211111211113313331333133313231121133131121133132233232   <<    C11112331312111112111133133313331333132311211331311211331322332323   >>      C11112331312111112111133133313331333132311211331311211331322332322   >>