C11112331312111112111133133313331333132112312113313231333133313221211131   >>    C1111233131211111211113313331333133313211231211331323133313331322121113   <<    C11112331312111112111133133313331333132112312113313231333133313221211133   >>      C11112331312111112111133133313331333132112312113313231333133313221211132   >>