C31232233133313221211113313331333133313112113231323133313231231211   >>    C3123223313331322121111331333133313331311211323132313331323123121   <<    C31232233133313221211113313331333133313112113231323133313231231213   >>      C31232233133313221211113313331333133313112113231323133313231231212   >>