C313212111133131211331333133313232233132313231211113313231323223311   >>    C31321211113313121133133313331323223313231323121111331323132322331   <<    C313212111133131211331333133313232233132313231211113313231323223313   >>      C313212111133131211331333133313232233132313231211113313231323223312   >>