C1111233133313231133133313331333132313231333121111113313232233133323223331   >>    C111123313331323113313331333133313231323133312111111331323223313332322333   <<    C1111233133313231133133313331333132313231333121111113313232233133323223333   >>      C1111233133313231133133313331333132313231333121111113313232233133323223332   >>