C31232233133313221211113313331333132313232233133313232112312331   >>    C3123223313331322121111331333133313231323223313331323211231233   <<    C31232233133313221211113313331333132313232233133313232112312333   >>      C31232233133313221211113313331333132313232233133313232112312332   >>