C31232233133313221211113313331333133313122132313331323132313231221   >>    C3123223313331322121111331333133313331312213231333132313231323122   <<    C31232233133313221211113313331333133313122132313331323132313231223   >>      C31232233133313221211113313331333133313122132313331323132313231222   >>