C313212111133131211331333133313232233132313231211113313231323123232321   >>    C31321211113313121133133313331323223313231323121111331323132312323232   <<    C313212111133131211331333133313232233132313231211113313231323123232323   >>      C313212111133131211331333133313232233132313231211113313231323123232322   >>