C31232233133313221211113313331333132313232233133313231333132333112121   >>    C3123223313331322121111331333133313231323223313331323133313233311212   <<    C31232233133313221211113313331333132313232233133313231333132333112123   >>      C31232233133313221211113313331333132313232233133313231333132333112122   >>