C11112331312111112111133133313231333132313232233133313231333133211312113311   >>    C1111233131211111211113313331323133313231323223313331323133313321131211331   <<    C11112331312111112111133133313231333132313232233133313231333133211312113313   >>      C11112331312111112111133133313231333132313232233133313231333133211312113312   >>