C11112331312111112111133133313231333132313331333132233312113313332233121   >>    C1111233131211111211113313331323133313231333133313223331211331333223312   <<    C11112331312111112111133133313231333132313331333132233312113313332233123   >>      C11112331312111112111133133313231333132313331333132233312113313332233122   >>