C11112331312111112111133133313231333132313331333132233312113313331333123232321   >>    C1111233131211111211113313331323133313231333133313223331211331333133312323232   <<    C11112331312111112111133133313231333132313331333132233312113313331333123232323   >>      C11112331312111112111133133313231333132313331333132233312113313331333123232322   >>