C31232233133313221211113313331333132313232233133313231323133313223211121   >>    C3123223313331322121111331333133313231323223313331323132313331322321112   <<    C31232233133313221211113313331333132313232233133313231323133313223211123   >>      C31232233133313221211113313331333132313232233133313231323133313223211122   >>