C11112331312111112111133133313331323132313232233132313311213311   >>    C1111233131211111211113313331333132313231323223313231331121331   <<    C11112331312111112111133133313331323132313232233132313311213313   >>      C11112331312111112111133133313331323132313232233132313311213312   >>