C11112331312111112111133133313231333132313331333132233312113313223321   >>    C1111233131211111211113313331323133313231333133313223331211331322332   <<    C11112331312111112111133133313231333132313331333132233312113313223323   >>      C11112331312111112111133133313231333132313331333132233312113313223322   >>