C1111233133313231133133313331333132313231333121111121111133313123223311211331   >>    C111123313331323113313331333133313231323133312111112111113331312322331121133   <<    C1111233133313231133133313331333132313231333121111121111133313123223311211333   >>      C1111233133313231133133313331333132313231333121111121111133313123223311211332   >>