C31232233133313221211113313331333132313232233133313331311132311321   >>    C3123223313331322121111331333133313231323223313331333131113231132   <<    C31232233133313221211113313331333132313232233133313331311132311323   >>      C31232233133313221211113313331333132313232233133313331311132311322   >>