C11112331312111112111133133313331333132311211331323132322331323223321   >>    C1111233131211111211113313331333133313231121133132313232233132322332   <<    C11112331312111112111133133313331333132311211331323132322331323223323   >>      C11112331312111112111133133313331333132311211331323132322331323223322   >>